ok here is goes i don't know if this has anything to do with it but i have an obx intake manifold and latley i have had some problems with it and got it fixed and just recived my a/f gauge and hooked it up and it wondered from lean to rich and the just stayed at rich. the car wont idle below 1200 for some reason. which is a rough idle. the aren't any air leaks. what could be the problem. help
#93674, "RE: white smoke and rough idle" In response to Reply # 2
white smoke and rough idle, immediately I wanna think headgasket... when my headgasket went, white smoke was coming out the tailpipe that smelled a lot like coolant...
95 GS-turbo: SOLD 92 Laser AWD- has a lot done, needs a lot more... 88 Suzuki Samurai- Daily beater/mudder
#93873, "RE: white smoke and rough idle" In response to Reply # 4
correct it hooks to the intake mani in the back, but i dont think it would cause white smoke id have to go with the other guy on the head gasket although no iat i would think would affect your idle a little, computer would run engine rich all the time im guessing
98 RS: Mods: Custom Stage 2 Turbo kit , 55mm throttle body, gutted cat, evo cat back exhaust, p/p intake manifold,p/p Head, af-x underdrive pulley, B&M short throw shifter,Built bottom end Je pistons eagle rods 8.8:1 compression.
Status:Up and running again! nice new paint
Custom stage 2 hahn turbo kit Hahn Super 16g turbo (ceramic coated) Hahn manifold (ceramic coated) Hahn Downpipe assembly Hahn intercooler piping smic Hahn oil line kit Type s bov 2G Gsx smic walbro 255 fuel pump Synapse missing link Vortech s-fmu NGK Bkr7e11 Plugs A-pillar w/boost, a/f, oil pressure gauges
#93874, "RE: white smoke and rough idle" In response to Reply # 0
Originally posted by jcold83 i have an obx intake manifold
I am gonna take a shoot at this just cuz I have the venom manifold which is pretty much the same thing...
First off, I bet you could tell all the holes on the back of the manifold are not drilled/tapped correctly. You should have fixed those first. Then you need to drill a hole on the side of it for your MAP sensor, and you need to probably weld in a bung or something for your PCV Valve. Next, you either have to weld in another bung and extend the EGR pipe or just get rid of the whole EGR system period and use block off plates. Then in the back, you should have your vac lines as well. You need your IAT for sure.
Did you do all this already?
Also, check for vac leaks too cuz my VENOM manifold, the flange on it was not straight, it was warped just a little bit.
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