car starts, revs to 2.5k then dies
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gvr4ever Forever Member 347/1000
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posted 03/26/21 07:37 AM
Quoting Nebraska:
Is it idling to 2500? If so, may be you forgot to plug in a vacuum hose and have a major vacuum leak. Maybe one of the nipples by the injectors were forgotten? Do you have a boost leak tester?
Otherwise I see you have some mods, did you happen to install an AFPR? They say it isn’t necessary for 1g but I have always done it for insurance.
Does your timing check out?
For some reason I’m putting my money on boost leak!
I recall the 2G stock FPR being better at controlling a higher flowing fuel pump that the 1G. I recall knowing someone who ran a 190lph pump in a 2G with zero FPR mods and it seemed fine. I ran my Galant VR4 for a very short time with just a Walbro 255 and at idle it ran way too rich. In boost pressure, it seemed to be okay, but in vacuum, no dice. I hated it and quickly ordered a aftermarket FPR.
Large boost leaks (like forgetting to hook something up) will cause a car to stall right away. It never hurts to check, but it sounds like a tuning issue and you're already on top of it.
1992 Nile black w/sunroof
15xK miles. 2nd owner since 1998
Posts: 6004 | From: central Indiana | Member Since: 08/06/02 | IP: (184.170.166.66) |
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yubh8tn Junior Member 1384/2000
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posted 03/26/21 11:40 AM
Quoting "Nebraska":
Could be tuning issue for sure, if you were playing with the throttle body, the BISS screw could need adjustment, there is an o ring in there that can degrade. In link can you report what your IAC position is?
I didnt mess with any screws besides the ones that hold on the sensors, but I didnt adjust my TPS at all after installing it, and i guess it's possible I didnt tighten an intake manifold nut all the way, but I'm pretty sure I did. Also both nipples I can see behind the fuel rail are plumbed to something, are there more? I'll do a BOOST leak test like you said hahaha... thanks for the clarification
I'll report my IAC values when I get home
Belize Green 1384/2000 1998 Integra
Edited by yubh8tn (03/26/21 04:23 PM)
Posts: 98 | From: coeur d alene, idaho | Member Since: 08/21/19 | IP: (2600:100f:b067:4) |
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