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Discussion Starter #1
Hello Folks!
I am new here and I would greatly appreciate your help. I have a question about my Solara. I recently had to change the battery and after I did the check engine light came on. The car runs fine but can you please tell me if this is normal? Will the light turn off by its self? I bought the car about 4 years ago with 26000 on it now it has 57000 so I dont think its anything major. I appreciate the help.

Thank you,
Mike
 

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Ferocious Teddy Bear
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674 Posts
The absolute best thing you can do is get it scanned to see what the problem code is. You can dissconnect the negative battery terminal for 15 minutes to reset the codes. There are numerous parts stores that will scan it for free and explain the problem code for you. Autozone is the largest that i can think of that will do this service free of charge. Find out the code and let us know. We are here to help.

Marc
 

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I agree just reset it first. The light should go away if there are no problems. But if it comes back on you should get it scanned.
 

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Ferocious Teddy Bear
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674 Posts
scan it regardless. If its free it only costs time. This may give you some insight to possible work that would need to be done down the road. Just my .02
 

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Discussion Starter #5
Thank you!

Hey thank you!
I appreciate the help. I will do both things 1) Try resetting and 2) get it scanned. Thank you for the very sound advice, you guys are great. :thumbup:
 

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Stock Sleeper
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139 Posts
The codes taken from the 'Haynes Repair Manual' - Toyota Camry 1997 thru 2001 *All models (includes Avalon, SOLARA & Lexus ES300)

They are listed by:
Code # - Description
· Possible problem area


All codes apply to all models, engine types, or years. A scanner can only pull the codes stored in the cars PCM that its hooked up to and it not possible to extract a code that doesn't apply to the vehicle it's diagnosing.

P0100 – Mass Airflow (MAF) sensor circuit malfunction
· Open or short in MAF sensor circuit
· MAF sensor malfunction
· PCM malfunction
P0101 – Mass Airflow (MAF) circuit range/performance problem
· MAF sensor malfunction
P0105 – Manifold Absolute Pressure (MAP) Sensor circuit malfunction
· Open or short in MAP sensor circuit
· MAP sensor malfunction
· PCM malfunction
P0106 – Manifold Absolute Pressure (MAP) sensor malfunction
· Defective MAP sensor
· Loose, torn or missing vacuum line
P0110 – Intake Air Temperature (IAT) sensor circuit malfunction
· Open or short in IAT sensor circuit
· IAT sensor malfunction
· PCM malfunction
P0115 – Engine Coolant Temperature (ECT) sensor circuit malfunction
· Open or short in ECT sensor circuit
· ECT sensor malfunction
· PCM Malfunction
P0116 – Engine Coolant Temperature (ECT) circuit range/performance problem
· ECT sensor malfunction
· Cooling system problem
P0120 – Throttle/Pedal Position Sensor (TPS) circuit malfunction
· Open or short in TPS circuit
· TPS malfunction
· PCM malfunction
P0121 - Throttle/Pedal Position Sensor (TPS) range/performance problem
· TPS malfunction
P0125 – Insufficient Coolant Temperature closed loop fuel control (non-California)
· Open or short in heated oxygen sensor (bank 1, sensor 1) circuit
· Heated oxygen sensor (bank 1, sensor 1) malfunction
· PCM malfunction
P0125 – Insufficient Coolant Temperature closed loop fuel control (California)
· Open or short in air/fuel (A/F) sensor circuit
· A/F sensor malfunction
· PCM malfunction
P0128 – Thermostat Malfunction
· Thermostat malfunction
P0130 – Heated Oxygen Sensor Circuit Malfunction (bank 1, sensor 1)
· Heated oxygen sensor malfunction
· Fuel trim malfunction
P0133 – Heated Oxygen Sensor Slow
· Heated oxygen sensor malfunction
P0135 - Heated Oxygen Sensor Heater Circuit Malfunction (bank 1, sensor 1)
· Open or short in heated oxygen sensor heater circuit
· Heated Oxygen sensor heater malfunction
· PCM malfunction
P0136 - Heated Oxygen Sensor Circuit Malfunction (bank 1, sensor 2)
· Heated oxygen sensor malfunction
P0141 - Heated Oxygen Sensor Heater Circuit Malfunction (bank 1, sensor 2)
· Open or short in heated oxygen sensor heater circuit
· Heated Oxygen sensor heater malfunction
· PCM malfunction
P0150 – Heated Oxygen Sensor Circuit Malfunction (bank 2, sensor 1)
· Heated oxygen sensor malfunction
· Fuel trim malfunction
P0153 - Heated Oxygen Sensor Circuit Slow Response (bank 2, sensor 1)
· Heated oxygen sensor malfunction
P0155 - Heated Oxygen Sensor Heater Circuit Malfunction (bank 2, sensor 1)
· Open or short in heated oxygen sensor heater circuit
· Heated Oxygen sensor heater malfunction
· PCM malfunction
P0171 – System too lean
· Loose air intake hose or duct
· Incorrect fuel line pressure
· Obstruction in injector
· Heated oxygen sensor malfunction
· MAP or MAF sensor malfunction
· ECT sensor malfunction
P0172 – System too rich
· Incorrect fuel line pressure
· Leaking injector
· Heated oxygen sensor (bank 1, sensor 1) malfunction
· MAP or MAF malfunction
· ECT sensor malfunction
P0174 - System too lean (air/fuel lean malfunction, bank 2)
· Same as P0171
P0175 – System too rich (air/fuel rich malfunction, bank 2)
· Same as P0172
P0300 – Random or Multiple Cylinder Misfire Detected
· Ignition system malfunction
· Injector malfunction
· Incorrect fuel line pressure
· EGR malfunction
· Incorrect compression pressure
· Incorrect valve clearance
· Incorrect valve timing
· MAP or MAF sensor malfunction
· ECT sensor malfunction
P0301 – Cylinder no. 1 Misfire Detected
· Same as P0300
P0302 – Cylinder no. 2 Misfire Detected
· Same as P0300
P0303 – Cylinder no. 3 Misfire Detected
· Same as P0300
P0304 – Cylinder no. 4 Misfire Detected
· Same as P0300
P0305 – Cylinder no. 5 Misfire Detected (V6 models)
· Same as P0300
P0306 – Cylinder no. 6 Misfire Detected (V6 models)
· Same as P0300
P0325 – Knock Sensor 1 Circuit Malfunction (bank 1, V6 models)
· Open or short in knock sensor 1 circuit
· Loose knock sensor 1
· PCM malfunction
P0330 – Knock Sensor 2 Circuit Malfunction (bank 2, V6 models)
· Open or short in knock sensor 2 circuit
· Loose knock sensor 2
· PCM malfunction
P0335 – Crankshaft Position Sensor A Circuit Malfunction
· Open or short in crankshaft position sensor circuit
· Crankshaft position sensor malfunction
· Starter Malfunction
· PCM malfunction
P0340 – Camshaft Position Sensor Circuit Malfunction
· Open or short in camshaft position sensor circuit
· Camshaft position sensor malfunction
· Starter malfunction
· PCM malfunction
P0401 – EGR Insufficient Flow Detected (4-Cylinder engine)
· EGR valve stuck closed
· Open or short in VSV circuit for EGR
· Vacuum or EGR hose disconnected, torn or missing
· MAP sensor malfunction
· EGR VSV stuck open or closed
· PCM malfunction
P0401 – EGR Insufficient Flow Detected (V-6 engine)
· EGR valve stuck closed
· Open or short in EGR gas temperature sensor circuit
· EGR gas temperature sensor malfunction
· Open or short in VSV circuit for EGR
· EGR VSV malfunction
· Vacuum control valve malfunction
· Vacuum hose disconnected or blocked
· PCM malfunction
P0402 – EGR Excessive Flow Detected (4-Cylinder engine)
· EGR valve stuck open
· Vacuum or EGR hose connected to wrong pipe
· MAP sensor malfunction
· PCM malfunction
P0402 – EGR Excessive Flow Detected (V-6 engine)
· EGR valve stuck open
· EGR VSV stuck open
· Short in EGR VSV circuit
· Open or short in EGR valve position sensor circuit
· EGR valve position sensor malfunction
· PCM malfunction
P0420 – Catalyst System Efficiency Below Threshold (4-Cylinder engine)
· Three-way catalytic converter malfunction
· Open or short in heated oxygen sensor circuit (bank 1, sensor 2)
· Heated oxygen sensor malfunction (bank 1, sensor 2)
· Open or short in heated oxygen sensor circuit (bank 1, sensor 1) or A/F sensor 2 circuit
P0420 – Catalyst System Efficiency Below Threshold (V-6 engine)
· Three-way catalytic converter malfunction
· Open or short in heated oxygen sensor circuit
· Heated oxygen sensor malfunction
P0440 – EVAP System Malfunction
· Vapor pressure sensor malfunction
· Fuel tank cap cracked, damaged or incorrectly installed
· Vacuum hose blocked, cracked, torn or disconnected
· Hose or tube blocked, cracked, torn or disconnected
· Fuel tank damaged
· Charcoal canister damaged
P0441 – EVAP Control System - incorrect purge flow
· Open or short in VSV circuit for EVAP
· VSV for EVAP
· Open or short in vapor pressure sensor circuit
· Vapor pressure sensor malfunction
· Open or short in VSV circuit for vapor pressure sensor
· Malfunction in VSV for vapor pressure circuit
· Vacuum hose blocked, damaged, or disconnected
· Charcoal canister malfunction
P0442 – EVAP System - small leak detected
· Same as P0440
P0446 – EVAP System - vent control malfunction
· Same as P0441
P0450 – EVAP System - pressure sensor malfunction
· Open or short in vapor pressure sensor circuit
· Vapor pressure sensor malfunction
· PCM malfunction
P0451 – EVAP System – pressure sensor range/performance problem
· Same as P0450
P0500 – Vehicle Speed Sensor Malfunction
· Open or short in speed sensor circuit
· Vehicle speed sensor malfunction
· Instrument cluster malfunction
· PCM malfunction
P0505 – Idle Control System Malfunction
· Idle air control (IAC) valve stuck or closed
· Open or short in IAC valve circuit
· Open or short in A/C switch circuit
· Air intake duct or hose loose
· PCM malfunction
 

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Discussion Starter #8
Followup

Hey Thanks 1 Gen Sol for that info.

The light went away. According to a mechanic I know, this is normal on all new cars. The car's computer is doing what it should have done, (a little late :disappoin) but its letting me know there was a problem with the battery. He says that if all is well the light will go away on its own.

thanks fellas!
 

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Hey everyone. I also have a 2000 Solara.

My check engine light has been on for years. I had it checked a couple of years ago, and they said the problem was with the catalytic converter. It wouldn't really hurt the car, I guess my emissions would just be, well, not so good. They wanted about $300 to fix it.

I'm thinking maybe I should go to Autozone again to see what's up with it. What do you guys think?

The local Toyota dealership wanted $90 just to hook the car up and tell me why the check engine light was on.
 

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Stock Sleeper
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mytoyota02 said:
Hey Thanks 1 Gen Sol for that info.

The light went away. According to a mechanic I know, this is normal on all new cars. The car's computer is doing what it should have done, (a little late :disappoin) but its letting me know there was a problem with the battery. He says that if all is well the light will go away on its own.

thanks fellas!
Glad I could help.


ericisbacchus said:
My check engine light has been on for years. I had it checked a couple of years ago, and they said the problem was with the catalytic converter. It wouldn't really hurt the car, I guess my emissions would just be, well, not so good. They wanted about $300 to fix it.

I'm thinking maybe I should go to Autozone again to see what's up with it. What do you guys think?
I've had the same problem for my 95 Avalon and my mech. (at a Toyota Dealership) scanned it with a OBD II scanner and also said it was the catalytic converter. He told me the case was most likely the oxygen sensor. Nothing to worry about just needs a new sensor. I just never got a replacement and dealt with the check engine light on.
 

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1st Gen Sol said:
Glad I could help.




I've had the same problem for my 95 Avalon and my mech. (at a Toyota Dealership) scanned it with a OBD II scanner and also said it was the catalytic converter. He told me the case was most likely the oxygen sensor. Nothing to worry about just needs a new sensor. I just never got a replacement and dealt with the check engine light on.
I realize it's a long time between posts, but I'm wondering -
Is it possible that my check engine light problem could be affecting gas mileage? Could it affect MPG if it is either the oxygen sensor or the catalytic converter?
 

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Alltrack Wannabe
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mytoyota02 said:
The light went away. According to a mechanic I know, this is normal on all new cars. The car's computer is doing what it should have done, (a little late :disappoin) but its letting me know there was a problem with the battery. He says that if all is well the light will go away on its own.
Your mech buddy doesn't know much about new cars then....
If the ALT stops charging, the BATTERY light will come on, not the CEL.
If you remove your bat and replace with a new one, NO light should come on.
The CEL shouldn't go off without being reset.
Does it come on when you turn the key to on?

A bad O2 sensor WILL cause your gas milage to go down.
It can also cause the engine to run rough.
There IS a reason [besides them wanting your $$] that they tell you to replace it..............................
Also, even if it is just the O2 sensor, which won't cause that much damage [it can cause the engine to carbon up more if it makes it run rich, and the cat also], you can't tell if a more important code comes up, as the light is already on.

Bottom line, if you have a CEL, you need to get it fixed. It's called a warning light for a reason.
 

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I have a 2002 solara that after 3 trips to the shop with the CEL on, the o2 unit was replaced. Everything was fine for about a month and now the light came back on and started flashing. When autozone read it they said misfire on #2 cyl. Any help?
 

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If your MIL (malfunction indicator light) is flashing, then it indicates a severe misfire and you should look into it right away. Severe misfires will dump excess fuel into your exhaust and destroy your cat, if its a spark failure. If it is a fuel failure then you most likely have a clogged injector. Either way its a problem, have it checked out. Good luck
 

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you can remove the battery clamp for 3 or 4 minutes and if there is no problem the light will go out and stay out. I do this at work once in a while when i dont want to fetch the meter and i am pretty sure there's really not a problem.

I bought a bare bones OBD II scanner at harbor freight for $30. Its already paid for itself: I cleaned the throttle body once and i think i sprayed too much seafoam on some sensor or another, and the CEL blinked on when i started the engine. So I hooked up my lil scanner to the OBD II port under the dash, and and no codes were displayed. And this scanner will flash the code for 10 seconds, and then automatically clear the code. Which is what it did. The CEL turned off and stayed off. Problem solved - no trips to the mechanic, no more expense and no waiting around. I love it. :loove:
 

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I have an '02 Toyota Solara, 4 cyl engine. My CEL came on a few weeks ago and I went to AutoZone so they could read the code. It came up with P0128 - Coolant Thermostat. We got a new Temp Sensor (in the thermostat housing) and put it on - now a week later the CEL has come back!! Can anyone offer any advice or solutions??
 

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Inveterate Tinkerer
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It came up with P0128 - Coolant Thermostat. We got a new Temp Sensor (in the thermostat housing) and put it on - now a week later the CEL has come back!!
Checking my trouble code list I don't even see a P0128 but my list is for the GenII. I have a hunch though.

If P0128 said "Coolant Thermostat" that isn't the same as a temp sensor. I've no clue how the ECU would know the thermostat is bad but now that you know where it is (inside the housing) you might want to replace it and see if the code stays cleared.

Cheers
 

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to find the rear oxygen sensor on a Solara V6 2000....look under the driver side
after the catalytic converter right on the muffler pipe.... it is easy to see
and will require a 7/8 inch wrench... if you are buying the universal sensor (USOS-4000)
this is how the color code wires go together....2 white to two black, black to blue and grey to white..
 
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