homerj

the issue this week seems to be the car will drive fine and i stop and get gas. when i go to re-start it wont idle, if i step on accelerator it coughs and chokes. as i slowly push accelerator above 3k rpms it seems to clear out. but when i let off accelerator rpms stay up and i have to use clutch and motor to bring them back down. i have a maf setup and 55lb injectors.i recently replaced cap and rotor,coil. today was the second time this happened. last time barely made it home. tried it today and ran great till i stopped. any thoughts or ideas on troubleshooting. another question i have is it possible to run 18lbs boost and not have oil leaks. recently had motor rebuilt and now leaking multiple places. told by shop that anything over 12lbs im gonna overboost.thanks again for the help.

exp951

I'll be looking at
MAF
TPS
ISV

Also you can run 18 psi and no oil leaks, I run 19psi and my car doesn't leak oil except the ps fluid.

NM'87 951

You had the engine rebuilt and now have oil leaks. That doesn't sound right

exp951

yup, time for a new mechanic

bw993

I run 22 psi with E85 on the track and my car does not leak, so I think you need a new mechanic. What MAF are you using?

Tom M'Guinn

Right, high boost does not need to result in oil leaks. That's not great advice...

When the RPM's remain high, how high are they and for how long?

homerj

my ps leaks like crazy as well. had one oil leak fixed and they said it was a bur and tore gasket. but leaks now. just cant find anyone in socal that knows how to work on 944 turbo. the rpms are a 3k range. i was thinking tps or throttle body but not sure. the maf i have is scivision maf. thanks for the help.

bw993

PM me. I can give you the name of a mechanic in So. Ca. that specializes in 951s. He's rebuilt at least two engines for my track car.

Bill

homerj

What can I do to start eliminating some of the issues?

Adker

Start by fixing what you said leaks, the PS. Get new hoses and rebuild the pump.
Rebuild is easy to do once you get the pump off the car. You can get a kit and a video from here:
http://www.rennbay.com/rack-944-powe...-kit-p-46.html

homerj

any thoughts on sorting the engine out. eliminating maf,tps or any shops that understand the 944 modified. thanks

homerj

solved problem i hope thanks to another rennlister kev951. stopped by and figured the tps was mounted wrong. taken two spirited drives and no problems.

kev951

Please keep me updated John. I also checked your wp procedure on the 308.. doesnt require any special tools , but the pumps can freeze on the block via the steel mounting studs.