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Car Dies after 1-2 seconds

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autocrossn

Proven Member
62
3
Jun 19, 2013
La Crosse, Wisconsin
BACKGROUND:1992 awd colt 4g63 auto swap
2g wiring harness tucked/deleted unnecessary components
Evo 8 ecu tephra v7 speed density rom
mods:
Lc1 wideband
Side exit exhaust
1000cc injectors
aem 5 bar map
gm iat

I start the car up and it runs for a second or two and dies
Unless i keep tapping the throttle ( stays running but keeps on trying to die)

its getting fuel its getting spark
Cas isnt 180 off
ive tried 3 different cas
Cas wiring is good
Injector resistor pack is in place
TPS is set at 14%
Has good fuel pressure (afpr)

Ive went through everything mutiple times and can not figure out whats wrong for the life of me.
 
Oh man this sounds like my issue too really does. I've been searching and searching. For me.. I had it running a couple days ago, lost fuel pressure from loose hose connection in tank, fixed that, left gas open to environment for like 24 hrs maybe a little more . I'm almost thinking bad gas at this point or pull the ECU and check.

OP .. when's the last time you ran it or how long has gas been sitting for you? How did you check fuel? How did you check wiring? did you check your ECU? I think that's me next step.

Interested to hear how it turns out for you.
 
What is the behaviour like prior to it cutting out? Does it rev really low and at least "try" to stay running, or does it just cough and that's it?
 
Any update on this? I'm having the same issue with my 98 Spyder. It'll start up for two seconds and sounds like it's running normal, then it'll just shut itself off.
 
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