Engine R&R Won't Stay Running ?? - Toyota Nation Forum : Toyota Car and Truck Forums
1st & 2nd Generation (19831986 & 1987-1991) Toyota Camry Discussion for years: 1983-1986 & 1987-1991. Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.

 
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#1 Old 01-17-2009, 06:09 PM
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2nd Generation Engine R&R Won't Stay Running ??

SOLVED....... SOLVED ......



Everything swapped over except the fuel injectors(the wiring was correct and they tested at about 1.5 rsistance)

Could they read fine but still plugged?

90 3SFE 4 Cyl

Car ran fine before just bad head Gasket. Swapped block h,mmm... Not reuse the injectors a bad thing?

Gonna see if it will saty running when IADD FUEL THROUGH INTAKE

Last edited by malayan; 01-21-2009 at 03:03 PM.
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#2 Old 01-17-2009, 06:33 PM
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Does the engine try to start but doesn't or run for a short period of time then die?
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#3 Old 01-17-2009, 06:55 PM
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Runs a second then dies

Runs a second then dies.
Like it is running on the cold sart amount.. then dies

No diff if I push gas.

Found that the fuel injectors should read 13.8 Resistance and they don't.!!!

So I will replace the injectors then report back.

new injectors should read 13.8

Ok Here goes.....
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#4 Old 01-17-2009, 08:30 PM
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the 87 injectors are low resistance used with resistor [silver box on firewall]
the 88 on injectors are high resistance used without resistor
low resistance injectors on 88 on ECU can fry up ECU
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#5 Old 01-18-2009, 02:12 PM
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2nd Generation LOW OR HIGH Dr.

Read your post and tell me it is no confusing...

First you say that thte 87 are low
........... the 88 are high..
Then you say if I use the low 88 it will fry the ECUI

I am guessing that you mean that if I use the 87 resistor type on the 88 It CAN fry the ECU?
I checked both sets of Injectors and they both read about 1.5 ohms
confused why the same injectors (even the wiring clipped on) would not work unless they are plugged.
I will check for power pulses coming from the ECU to make sure it is sending signal to the injectors...Right?

Thanks
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#6 Old 01-18-2009, 06:14 PM
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I should deletre double word..
If let say you put 87 year model injectors into 88 year model car without using resistor pack in series with them then 88 ECU can be damaged

Last edited by Doctor J; 01-18-2009 at 06:15 PM.
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#7 Old 01-18-2009, 07:40 PM
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How to test ecu to injectors

I think the japan Engines Inc sent me an engine block and injectors not compatable with my 90 camry ECU.
I will use the 6 hole flexplate to use engine but might have to use old injectors...

Tomorrow I plan to test the injectors ( that I took off my 90 camry) for ohms.

Also want to test my ECU to Injectors pulse. How Do I do THAT?

Thanks
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#8 Old 01-19-2009, 08:40 AM
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The professional way to test ECU for the injector pulses is to
Set digital volmeter into DC 'HZ' mode
all terminals to ECU must be connected
Connect POSITIVE PROBE to +12 V source
back probe #10 terminal on the ECU with negative probe
crank the engine it should indicate about 4 HZ [@240 rpm, one injection per revolution]
repeat the same for terminal #20
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#9 Old 01-19-2009, 09:30 AM
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Wow

Wow no that is a perfect answer....

Thank you Dr.
I will give it a go today.

I will post any results
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#10 Old 01-19-2009, 02:36 PM
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Running for a second sounds like it could be the AFM. Either the fuel pump is turning off or the reading from the AFM is wrong. Check the AFM operation.

-Charlie

03 WRX Wagon 5spd
89 Camry Alltrac LE 3S-GTE 5spd
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Previous: 90 Camry 3S-GTE, 90 Camry DX
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#11 Old 01-19-2009, 04:45 PM
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***solved***

I went out this morning and it would start and run for 2-3 seconds then die again.

OK.... After all the above oppinions and test tis and test that I decided to do some OLD SCHOOL TESTS THAT DONT NEEED A BUNCH OF SPECIAL EQUIPMENT AND TESTERS..

I jumped the B+ and the FP terminal to test Fuel Pump....Good
(I suspected this as the car was running when I parked it yesterday)

tested ohms for new engine, old engine and the camry I drove over there...THEY ALL READ 14 to 15 . This is wierd as the manual says that they are supposed to read 13.8
(Maybe my decimal is off with my tester and it gives the nearest round number)

OK I am guessing that the ohms ARE OK BUT MAYBE THE INJECTORS THAT CAME WITH THE BLOCK ARE DEFECTIVE OR PLUGGED.

Checked for codes ...no codes...Checked all fuses...good

I tested the AFM by swapping out with the camry I drove over to the shop in.

Still has symptoms....Same as above

I figured it was not gettng fuel and just running off the initial cold start injection of fuel.

I proceeded to pull all the plugs and dripped some fuel in each cylinder and reinstalled the plugs...

Waaaa Laaaaa. Took a few trys to start ( as I expected from maybe a little too much fuel ) THEN STARTED UP AND RAN GOOD FOR ABOUT 30 Seconds.


Stuck with my gut and figured that I should have put the injectors in that came out of the car ( it ran good but bad Head Gasket).

After swapping to the original injectors in STARTED RIGHT UP and now is running great!


OK .... WHAT TO LEARN???

I bought my 4th 2.0 from Japan Engine Inc.
(They supply 40k blocks from Japan) And they are shipped with injectors installed.

I should have tossed the injectors that came with the motor!

What I get for being lazy!!!... It would have taken only 10 minutes to put the original injector bar on while the engine was out. Instaed it took two days of troubleshooting..


If I would have listened to my gut I would have had it running on the first turn of the key like the other 3 motors I did.
Only Difference...This time I got Lazy......

Last edited by malayan; 01-19-2009 at 05:13 PM. Reason: Solved
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#12 Old 01-19-2009, 05:17 PM
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2nd Generation Happy Camper Now!



I should have not used the injectors that came with the motor I ordered.

I figure they plugged up while in storage???

Thank You Guys & the great specs from the Dr.J

Another reason why this is such an AWESOME SITE!
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