1994 Toyota Corolla After Repair, Engine Start and stop imm

TIANJIN

MEMBER
1994 TOYOTA COROLLA

Electrical problem
1994 Toyota Corolla 4 cyl Two Wheel Drive Automatic

Please help my first DIY to my car.
My 1994 corolla 1.8L stopped starting in the morning two weeks ago. Battary was good. Car could crank but never start. Before this happened, my car was running very well without any problem. I followed the procedure of troubleshooting and found out that either ignition coil(out of spc, 3kohm detected, but shoud be 9-18kohm) or igniter had problem because no spark at all in each troubleshooting step. I replaced them all. During repairing, I crank Engine to TDC and mark distributor to the engine block, and also mark rotor's postion. I am pretty sure or assume that I installed back correctly. This really took me more than a week to get into this point. Finially, I jump power from my other car which has very good battary condition. I sat into the car, turned ignition key to "ON" position to have car self-check though, as usual, I could hear a familiar sound after 4-5 second( don't know what it is but it was always like that since I bought it). I turned key to start engine. However, engine started for 2 seconds and then stopped immediately. I try several times. It just did something. Even I hold ignition key on start position after engine started, engine dead anyway. I also try press gas while I started engine, unlucy, It just did something, start 2 seconds and stop.

Any idea what went wrong with my repairing.

Thank advance guys

tianjin

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Do below and comeback with some results

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it

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Monday, October 26th, 2009 AT 10:21 PM

TIANJIN

MEMBER
2 POSTS

Thank you for giving me so detailed information. It do help me for further inpection.

Here is what I just found out. Every time I start the Engine, It started and run for 2-3 seconds and stop. I wait for serval seconds and start again. The engine acts the same, run 2-3 sec and stop. I can repeat this as many time as I want. Till this point, I probably can tell that at least at engine starting stage, the fuel and spark works OK. But right after engine started, either fuel is cut off or ignition failed to fire and cause engine to stopped. From my observation, It is most likely fuel system is cut off because I test spark while I started engine. The spark seems last until engine cease. This indicates fuel might go off first. If this is the fact, what might cause the problem?
Am I damage new ignitor while I replace old one and this cause ignitor can not function properly to receive timing from ECM(timing goes off) or to send igition reference pulses to ECM(ECM will cut off fuel pump)? These are just learn from the book and all inspections I did so far. Just try narrow down the problem and find where to go. I am a new and have not many tool and instrument to do the job. So I try specific as possible.

Appreciate for any suggestion.

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Tuesday, October 27th, 2009 AT 1:14 AM

RASMATAZ