SC- 1st Gen (1992-2000)

Problem got worse car starts up for couple sec then dies (>.<)

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Old 04-01-11, 05:53 PM
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baodalazi
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Default Problem got worse car starts up for couple sec then dies (>.<)

well I made a thread before on the car dieing on the highway every once in awhile. well I was otw to grab some fish sandwiches for lent and car died right at a stoplight;

I did the usual turn ignition key off all the way and went to try crank it back up, well it started right back up, but end up dieing even when I tried to rev car back up still dies.

No check engine lights when the car starts up
Also, haven't changed the spark plug and wires yet (broke) but had the dizzy and cap replaced, fuel filter also

Any help would be appreciated I called the local mechanic and he told me it might be the fuel pump. Just wanted some input any response would be great.
Old 04-01-11, 06:15 PM
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1jzchris
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Does you car smoke, might be your ECU going bad. Also do a fuel pressure test.
Old 04-01-11, 07:31 PM
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baodalazi
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nu uh car doesn't smoke no pings or anything abnormal or hot temps either
Old 04-01-11, 07:32 PM
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baodalazi
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how do you do a fuel pressure test? also a spark test? any info would be appreciated
Old 04-01-11, 09:14 PM
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Klaus
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Alright, I think I responded to your previous thread. I know you don't have a CEL but PULL YOUR CODES. http://www.lexls.com/tutorials/intro/codereading.html

Same procedure. Something to be aware of with our ECUs is that not all codes are designed to show an always on CEL. You'll see that in the repair manual. I'm willing to bet that if you do this procedure codes WILL come up. Start there. Any advice given to you or any other diag you do is absolutely worthless until you do this.

Did I mention to pull your codes? haha
Old 04-01-11, 09:17 PM
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outlaw0209
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Make sure your igniter is properly grounded
Old 04-01-11, 09:52 PM
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miraluna
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Have you tried Fuel pump ECU bypass procedures yet?

Search it.
Old 04-03-11, 09:50 AM
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baodalazi
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Kk will try to pull codes today thanks for responses
Old 04-03-11, 11:39 AM
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Klaus
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Originally Posted by baodalazi
Kk will try to pull codes today thanks for responses
good man
Old 04-04-11, 03:37 PM
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baodalazi
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pulled codes and i got a code 7 and a code 8 where do i go to loook for these?
Old 04-04-11, 03:43 PM
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baodalazi
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i think it meant code 78 fuel pump control is this the fuel pump ecu or the actual fuel pump unit?
Old 04-04-11, 04:45 PM
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1jzchris
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Pull you back seat out and its behind the panel on the driverside. Search the forums for the 12v mod..................code 78
Old 04-04-11, 04:55 PM
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Klaus
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Got your PM my man, figured I would post this for everyone- do not do the 12v mod as a diagnostic. Because if that isn't it, then you just cut your wires for nothing. The bypass does the same thing just more temporary- open your diag port, and jump terminals B+ and FP with a paper clip or something similar. When you turn your key to the "on" position you should hear your FP fire. Then start the car. If all goes well, it's just a bad FP ECU and go ahead and do the 12v fuel mod. If not, then you have some other fuel issue that needs to be worked out.
Old 04-04-11, 05:42 PM
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baodalazi
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ooo kk thanks for info
Old 04-06-11, 09:37 AM
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baodalazi
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just did this yesterday with a wire from b+ to fp and heard the fuelpump turn on, but i forgot to turn the key and crank it to make sure it will run properly will do that later today.
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