3rd & 4th Generation (1992–1996 & 1997–2001)Toyota Camry Discussion for years: 1992-1996 & 1997-2001
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-I took a cursory look under the hood for any obvious issues.did not see anything
-The idle has seemed to be a little off lately.
-We just got the car from Grandma 2 months ago. The car was very well maintained and as far as I know all maintenance is up to date.
-The front O2 sensor looks like it might be original.
-I know a p0171 on it's own is usually never an o2 sensor, however with the p1130 code could that mean a bad sensor?
-What is this stuff about a air fuel sensor instead of an o2 sensor or in addition to it
-this car does not have a MAF correct?
All feedback is appreciated
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
The P1130 is an indication that the Air/Fuel ratio sensor is not reading correctly. You could also have a vacuum leak somewhere on the car having unmetered air introducing itself into the system. The P0171 is just telling you the car is running lean and is triggered because the P1130 (A/F Sensor) is detecting unmetered air.
I would start with checking for vacuum leaks with a can of starting fluid or TB cleaner.
If you dont find any leaks, I would look into testing the MAP Sensor. If you need more assistance on testing the MAP sensor with a multimeter let me know and I'll post up more details on how to do it.
The P1130 is an indication that the Air/Fuel ratio sensor is not reading correctly. You could also have a vacuum leak somewhere on the car having unmetered air introducing itself into the system. The P0171 is just telling you the car is running lean and is triggered because the P1130 (A/F Sensor) is detecting unmetered air.
I would start with checking for vacuum leaks with a can of starting fluid or TB cleaner.
If you dont find any leaks, I would look into testing the MAP Sensor. If you need more assistance on testing the MAP sensor with a multimeter let me know and I'll post up more details on how to do it.
-I took a close look at the vacuum lines and did not see anything damaged
-I sprayed SF looking for an idle change and could not find anything wrong.
-I checked the codes again and all I have now was the p0171......the p1130 was gone(I had not cleared the codes with my scanner)....I just cleared the p0171 now.
-I looked in the Haynes manual at the MAP sensor testing. I pulled the harness off the sensor and tested the harness @ KOEO. I got 4.99 volts. I do not have a vacuum thing to test with KOER
-I am going to throw in a bottle of Techron just as a maintenance item and for giggles
-rockauto has an Airtex MAP sensor for $45 and a Standard for $243
-I believe the fuel tank and pump was replaced about 5 years/40k miles ago ago
thoughts?
-
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
Heres the test that my FSM Indicates, may help you further diagnose the MAP sensor.
*Contact Mister_Perkins via PM about this test*
It may be worth it to you to go to Sears and pick up a Vacuum pump (hand pump).
The Voltage you listed seems like its within specs, but its hard to tell if its actually reading correctly without being able to measure the voltage while applying vacuum to it.
MP.......thx for the info. I have not had a chance to get a vacuum pump yet, however since I added the large bottle of Techron last weekend and cleared the codes the CEL has not come on. the car was driven every day for a total of more than 300 miles. I even checked for pending codes a few times. I will keep you posted on what happens.
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
A week ago I go the codes again p0171 and p1130. I decided I would remove the O2 sensor so that I could see the part # with the idea of eventually getting a new sensor. From what I can tell from the records I have the o2 sensor is original. at 110k I could replace the o2 sensor as a maintenance item. When I put the socket and breaker bar on it the sensor appeared loose. I removed the sensor, sprayed some cleaner on it(I don't think this does much but while it was out?). I installed the sensor and tightened it up. I cleared the codes and so far they have stayed off. Does anyone think that the somewhat "not tight" sensor would allow air into the hole and cause the codes?
* I found out my upstream sensor is actually an Air Fuel Ratio sensor, $100 for a Denso from Rockatuo.com
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
Last edited by Woodyg; 11-04-2011 at 09:18 AM.
Reason: *
If you are talking about you front sensor, then yes being loose or even reusing the gasket can cause air to leak in and give you lean codes.
it was the front sensor. I put the socket and breaker bar on it and got ready to pull, but it just gave right in. it was not on tight at all. best I can tell the CAT was replaced in 2007(20k miles ago) but the O2 sensors were not changed. there appears to be a metal CRUSH washer on the O2 sensor. Should I replace that? can I buy them from Toyota?
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
So the CEL went off. I checked for codes anyways and I still had the p0171. it iwas not a pending code. the CEL comes on KOEO. I cleared the codes and have driven for a few hundered miles. The CEL is off and there are no codes....I have never run into an issue where the CEL was off but I had a code...Thoughts?
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
so the CEL would come on every few weeks. I would get the P0171 again and the clear it. it came on the other day so I took a good look at the intake hose and other hoses and I noticed that the 1" hose that runs from the VC to the Intake hose had come apart some at the intake hose. it normally pops into the intake but mine was coming out about 1.5" and was leaving a small gap. I am thinking that might have been enough to throw the code(s)........what do you think?
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
Ok so I connected the hose on the intake and the wife took the car to do errands . She came back 2 hours later and maybe she drove 20 miles. I had 3 codes p0171, p0171 pending, p1130. that was the fastest i got codes and only the 2nd tome i got the p1130...car seems to run fine.....thoughts?
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
get it from ebay or amazon by part number you get from above page.
I have not repalced any senosr yet. I figured out what A/F ratio senosr i need. Rockauto has the OEM denso for $98. and they have a MAP for $44. The car seems to run fine and I don't need an emission sticker until July. I do like to fix things on my car ASAP but I like to DX as best as possible first. I thought I would keep checking for codes and see if I get any more and maybe in a month I will get either the AF sensor or the MAP............Any thoughts on what senor you think is most likely to be the issue. AF or MAP?
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2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
your upstream AFR sensor is a root cause most likely.
I would tend to agree with you.....plus also some people replace the O2 sensor as maintenance and at 116k it is probably time. I think it is the original sensor. I found it odd though that when the hose coming off the intake was lose it would take a few weeks to throw the p0171 code but as soon as I tightened the hose up I got all 3 codes in about 20 miles...
__________________
2006 Vibe, White, 1zzfe, auto ( Toyota type IV), AWD, PW, PL, CC, AC, 161,000(5/12/2012)
1998 Camry LE, 4 door, Puke Green, I4(5S-FE), CA Emissions, Auto(A140E), 122k(3/22/2012), AC,CC, ABS, Built in Japan 04/98. Grandmas old car(acquired 7/22/2011), work= precat Denso A/F sensor, NGK wires.
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