problems, help needed!

[03.5BlueMSP]

hey guys so i just resently started having some issues.

1. - when i come to a complete stop or when decelerating sometimes, the rpm's will dip way down to around 150-200rpm and then shoot back up, and then down, then way up and smooth out a bit.

any ideas?

2. - car seems like it is having a boost issue. sounds like its over-boosting, but it doesnt move and then will bogg down a bit. sometimes this doesn't happen as well. all clamps are tight and no holes that i can see?

ideas?

 

[HKPRO5]

Try reseting the ECU

 

[dacquesta1]

egr?

 

[HKPRO5]

That too.

 

[fsd_619]

I need to clean my egr too!!!!, your egr is probably full of carbon deposit theres a how to thread on there on how to clean it goood luck!

 

[dandan2]

check ur wastegate by blowing into intake hose. if u can blow through it its bad, ud need a new one. also check the intake hose that goes to it, it could be torn or disconnected.

 

[03.5BlueMSP]

where is this intake hose im supposed to check/blow test?

 

[HKPRO5]

From the wastegate actuator there's a hose that goes to the intake take it off at the intake side and blow

 

[satyr36]

are you venting a BOV ?

 

[03.5BlueMSP]

i have the stock bpv..

and by to the intake you mean intake manifold?

 

[HKPRO5]

Where ever that line goes to from the actuator on the turbo take it off from that end. You should be able to trace it back.

 

[03.5BlueMSP]

alright, luckily i dont have classes tomorrow. ill try to clean the egr and blow test that hose.

 

[03.5BlueMSP]

just an update, i have NOT cleaned the egr yet.

i went to get a college book and the car will not idle worth a s***! when i come to a complete stop it just bounces from 100 to 800rpm, or even sometimes staying at out 150rpm...

what is this issue? egr?

 

[HKPRO5]

Egr or wastegate actuator

You should clean it. It only takes 15-20 min to do it. Also check your wastegate while you are at it.

 

[hornsfan10609]

Its much harder to get the egr off on an MSP than a P5, at least for me it was, but it's still easy with a small socket wrench. Bolts are 12mm IIRC and you have to take off the intake tube.

 

[03.5BlueMSP]

i got it off, but the 4 screws that hold the egr together are rusted in. ill try cleaning it still, but probably off for a new one tomorrow. 139.99 for a new one, ouch.

 

[dacquesta1]

still gotta get the screws out...spray pb blaster on there and let it sit overnight

edit: talk to scratchnsniff, he may have one. there was someone else selling a good one for 40 as well.

 

[03.5BlueMSP]

wont a new one come with the whole assembly? i have it out of the car now. but i cannot take it apart. aka i cannot take the connection end off of the vavle end.

 

[dandan2]

still gotta get the screws out...spray pb blaster on there and let it sit overnight

edit: talk to scratchnsniff, he may have one. there was someone else selling a good one for 40 as well.

the new one bolts right in, nothing gets changed over. ull need the egr valve and a new gasket.

 

[03.5BlueMSP]

no luck on cleaning the egr, and btw. i have a light high picked squeel on idle, coming from the turbo. maybe the coupler on it is leaking??