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Fuel or boost issues?

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Old 11-16-07, 04:29 PM
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Fuel or boost issues?

Hey guys, I bought a 10ae and drove it home. It had some leaning out issues around 5k+ I think like it would feel like the engine was cutting out a little, so I didn't floor it. After sending the injectors in the shop told me 2 were high and 2 were low imp, so I replaced the lows with highs. (The 10ae has all high impedence...my other 10ae ran all highs as well). Now after I did this I ran into fuel cut right around 3500rpm or when the boost started to build, so again I didn't floor it or anything.

-A shop found that the generic bov was leaking so now the car has a stock bypass valve and intake.

-I looked for resistors or something to see if the guy who owned it before me wired them in but found nothing.
-Car has excellent compression and the coolant seals are fine...


-So anyone know what else I can look for? I've had the damn UIM off too many times looking around and can't find ****. I'm pretty sure all the vacuum hoses are hooked up correctly as well...so anyone has suggestions??


EDIT: Mods are: downpipe, mbc, boost gauge...and I think that's it for the engine
Old 11-16-07, 04:40 PM
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so the problem is that you are hitting fuel cut? well, get an rtek or a fuel cut defender then. Otherwise i'd make sure both fuel filters are clean/replaced
Old 11-16-07, 04:53 PM
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at 3800 rpm and 2psi of boost I don't think it's fuel cut. Oh yeah car has a fuel cut defender...forgot to mention. I'm jsut fixing it so I can sell it. don't want to buy an rtek. I just feel the car lean out or something right when I try to get my foot down even a little bit. Out of boost the car drives perfectly. I'll check the filters, but that doesn't make any sense if I could take it to 5500rpm before I put the 2 high imp injectors in. :S
Old 11-17-07, 07:33 AM
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How is your Vacuum check your hoses i was havng the same thing
Old 11-17-07, 03:48 PM
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it's probably a grounding issue like most 3800 hesitations
Old 11-17-07, 04:48 PM
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Originally Posted by SmogSUX
(The 10ae has all high impedence...my other 10ae ran all highs as well).
The 10AE is just a trim package. All post-87.5 FC's have high-impedance injectors.

Now after I did this I ran into fuel cut right around 3500rpm or when the boost started to build, so again I didn't floor it or anything.
One of your secondary injectors isn't working, possibly because it's connector wasn't installed properly during reassembly. This will cause a complete misfire on one rotor when the secondaries are supposed to come on because only half the required fuel is being injected into that rotor.
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