highspeeddubbin

after going through about 2 hours worth of searches, i decided to just post my situation.

i was driving home from boston today with a few friends. i was in 4th gear about 5k rpm and i punched it. everything seemed fine, boost spiked a bit hit .90 bar on the avc-r which seemed strange since i have my boost set to .70 so i let of, cruised for about 10 more miles with no problems. until i got off the highway.

when i got off, we stopped to drop off a few friends. i noticed my idle was real rough. still at around 900 rms and holding but rough, i could feel it in the shifter. i parked it for an hour or so, started right up, but the weird idle is still there. still builds boost, vacume is around 12. as soon as i give it a bit of thottle it seems fine. i checked my map sensor and hoses all seem good, cars running normal temp, so im baffled.

mods. dp mp racing beat exhaust, power fc, intake, running non seq. apexi avc-r, new street ported motor w/ 12k miles,

also i pulled a vacume line off the intake manifold and that seemed to stop the shaking of the manifild, i dont know if this helps anyone but worth a shot

highspeeddubbin

TTT

FormerPorscheGuy

Just a long shot but check your motor mounts.

highspeeddubbin

mounts seem fine, thanks for the idea though

highspeeddubbin

??? no ideas

RCCAZ 1

iTrader: (10)

Possibly a coil or plug wire? How old are your wires? Do you have a friend with a fresh set you could try? How old are your coils? Just a long shot!

HEns

id say it has something to do with ur port, did you get ur pfc retuned after you had broken your engine in? that may have something to do with it

BinaryRotary

If your engine is loping at idle (flub, flub-flub, flub-flub), then you have probably blown an apex seal. You probably had a boost spike that the seals didn't like. Hope I'm wrong. A compression test will tell for sure.

Peter Farrell Supercars

Try a comp. test. You may have broke an apex seal.

highspeeddubbin

i have a compression test in the works, the wires look old, not sure how old, i know the plugs have been fouled a few times. i have a new set of wires im going to throw on but im going to wait until after the holidays.

thanks alot for all the response

skunks

so is your vaccum always at 12 now or was it just that one time?

highspeeddubbin

to tell you the truth i cant really remember. i was told that if the seal was blown, the vaccum would flicker.

highspeeddubbin

changed plugs and wires today, still no luck, what are some signs of a blown motor.