Friday, March 25, 2011

1992 Corolla won't start help please! [video inside]



I have run into a problem after swapping in a new fuel pump and new distributor into a corolla. The fuel pump turns on and fuel rail has pressure but it will not stay running for more than a second or two almost sounds like it's 180 degress out of time but the dizzy will only go in one way so I don't think that's it.



Here is a video that will hopefully help diagnose the symptom.


















You Tube







Reply 1 : 1992 Corolla won't start help please! [video inside]



not an expert and i may be wrong but check the cables and make sure they are in the right firing order. i did that once :-D the dizzy can be fine and if 2 cables are crossed it would do something like that. good luck

Reply 2 : 1992 Corolla won't start help please! [video inside]




Quote:








Originally Posted by Deevious
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I have run into a problem after swapping in a new fuel pump and new distributor into a corolla. The fuel pump turns on and fuel rail has pressure but it will not stay running for more than a second or two almost sounds like it's 180 degress out of time but the dizzy will only go in one way so I don't think that's it.



FYI, when you have a dizzy that's 180* from where it should be, the body itself doesn't have to turn 180*. You just need to take it off the motor and turn the shaft 180*.



THAT BEING SAID, from the video, it doesn't appear that is the case. I don't think the engine would run at all if the dizzy was 180* off. Yours ran for a couple seconds smoothly from what I could tell.



Make sure all critical sensors are still connected like MAP, TPS, etc. How do you know there is pressure in the rail? Do you have a gauge? If so leave it connected when you start it and observe it when the engine runs for those couple of seconds. I'd start there. If you do this, please let us know what the results are.

Reply 3 : 1992 Corolla won't start help please! [video inside]



yeah do what he said ^^^^^

Reply 4 : 1992 Corolla won't start help please! [video inside]



I've checked over everything fuses, sensors, etc. everything except buying a pressure gauge to see if the fuel pressure is dying off(getting to that soon). The thing is before the fuel pump died it started up every time perfect and the only thing I changed was the fuel pump and distributor which I really didn't have to do since I found out the old one was working fine.



Another question I have is how do you test to see if the ECM/ECU is bad because during the 5 seconds the car is running the check engine light stays on.







EDIT: I also ran a hot wire from the battery to the fuel pump connection in the diagnostic port and confirmed the audible pump and attempted to start and got the same results.

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