bad problem rb20

[cademfjohnson]

my car has a horrible miss, almost a cut out, when i get into boost even just barely and at only about a third throttle. i can floor it and it will kinda choke its way out of it and move a little bit but its not moving near as fast as it should, obviously. its sucking gas and my plugs are all fouled. i swapped em out, same problem. i cleaned the iacv and reinstalled, checked for boost/vac leaks using carb cleaner, no luck. hoses still attached to fuel pressure regulators. im thinking this has to be an ignition problem or some kind of air metering problem. i tried resetting the ecu on a hope but it did no good. any ideas? i readjusted the tps too. its within spec now at .468 volts at idle. tried adjusting timing too with no luck there. idle is high at just over 2000 rpm, as soon as i plug in the iacv. unplug it, it idles normal at about 900.

overall it acts like an ignition coil problem, but seeing as these are coil on plug, its impossible all six went out at the exact same moment. ignition control module maybe? any ideas?

[cademfjohnson]

update, it is worse now. it starts, then runs for about 2 seconds then dies. i thought i was out of fuel so i rolled into a gas station, fueled up, and still won't run. this sucks

[Sil240]

If your car is stuck at the gas station.Un plug the MAF and limp home.

Have you tried another MAF or Ignitor?

[cademfjohnson]

i got it home. when it got worse, it was because my coupling came loose, it wasn't tight enough. that wasn't the original problem though. its still horrible. the ignitor is the ICM looking module that bolts to the coil cover right? i suspected it so i pulled it off and im gonna test resistance. if anyone knows specs or has access to allDATA let me know please!

no i haven't tried the MAF, i dont have one around and dont know anyone with an rb swap

[cademfjohnson]

forgot to mention, tinkering around more today, i found that it breaks up before boost, it will break up free revving in neutral at around 4 grand.

[cademfjohnson]

for future searches, i solved the problem. damaged coupling

[SullivanRacing06]

that what it always is, funny you said you looked for boost leaks and didnt spot that!

just shows how easy it is to miss simple things, glad to hear you found the problem....

[king]

dude..could tell me what was the problem exactly?? because i seem to have a very similar problem..literally the same..hoping to hear soon..

[Cidate]

for future searches, i solved the problem. damaged coupling