papsmagu

iTrader: (19)

my car will not maintain exhaust temps at idle. while i am driving, the exhaust temps are about 800 deg but the minute i stop for a light they drop down to about 200 deg. also it does not idle properly. in fact if i turn on the air, the car will stall. is there a chance the turbo manifold is cracked and the lack of backpressure is causing the rough idle or a possible vacuum line that i should look for?

just a side note, boost is fine.... and power is great. please help

FormerPorscheGuy

Your exhaust temp has nothing to do with your rough idle.

oneflytrini

iTrader: (1)

EGT is there to tell you how rich or lean you are running. Usually hotter temps means richer, and cooler temps mean leaner. I think thats right lol.

papsmagu

iTrader: (19)

oneflytrini, you live in Tamarac? i live in Sunrise. will you be at the Tower shops tonight..................if so I can drive there and you can see my problem. this is really bothering me....casue the car was running fine just a week ago!!!!

andre sinclair

iTrader: (36)

check your compression!

oneflytrini

iTrader: (1)

Sorry I didnt go out to Towers tonight, instead i went to a local drift meet. If anything ill be out there next friday. Look for the indian guy driving the gold FD with black rims.

ALI

neit_jnf

iTrader: (17)

the other way around... leaner = hotter; richer = cooler



too rich and it may get superhot due to fuel burning in the exhaust pipes

papsmagu

iTrader: (19)

I found part of my problem....the vacuum line to the purge control solenoid valve was not connected!!!!!!!! Idle is a lot better but still cannot turn on the air without stalling the car....will continue to search for disconnected vacuum lines.

Thanks for the suggestions.

alberto_mg

Read Damian's thread in the Advanced Tech section about fixing idle problems.

papsmagu

iTrader: (19)

continue my search .........................found the wastetage solenoid valve disconnected also found exhaust leak comming from turbo area.