Car not running right its missing CLUELESS
11-01-2009, 10:11 AM
#16
Nordschleife Master
Thread Starter
haha your probably right!
Changed the fuel filter and fuel pump last year or about 3k miles ago. I will look into what everyone said. Thanks
Changed the fuel filter and fuel pump last year or about 3k miles ago. I will look into what everyone said. Thanks
11-01-2009, 03:34 PM
#18
Nordschleife Master
Thread Starter
11-01-2009, 03:40 PM
#19
Nordschleife Master
Thread Starter
is there anyway to release fuel pressure on these cars? Like on the 944 you just pull a relay and crank it a few times and fuel pressure is released.
11-01-2009, 05:00 PM
#21
Nordschleife Master
Thread Starter
Changed fuel filter (new) and fuel pump. Did not help.
FI harness ground wire? Is that the one on the engine block? If so thats been cleaned and tested.
FI harness ground wire? Is that the one on the engine block? If so thats been cleaned and tested.
11-01-2009, 05:05 PM
#22
Rennlist Member
When you were swapping ignition wires around, did you also swap the wire that connects coil to distributor?
11-01-2009, 05:44 PM
#23
Nordschleife Master
Thread Starter
Same, pull the relay or pull the fuse. For an '87 it looks like relay XX or fuse 42-- there should be a fuse/relay chart on the CE panel cover, or check 928gt.com, or the WSM.
When you were swapping ignition wires around, did you also swap the wire that connects coil to distributor?
When you were swapping ignition wires around, did you also swap the wire that connects coil to distributor?
Update: We found out that the rear driver side cylinder is not firing all the time.
11-01-2009, 06:59 PM
#24
Nordschleife Master
Thread Starter
Found out the problem!! No COMPRESSION in rear cylinder...... major bummer!!!!!!!!!!!!!!!!!!!!!!!! off to have a beer 
note: also in a early post i said I have checked all the cylinders for compression. It was a buddy that was helping me and he later admitted he didn't do them all.
note: also in a early post i said I have checked all the cylinders for compression. It was a buddy that was helping me and he later admitted he didn't do them all.
Last edited by Dan87951; 11-01-2009 at 07:34 PM.
11-01-2009, 09:31 PM
#25
Rennlist Member
)But do you mean "no compression" like zero psi, or just poopy compared to the others? Sometimes a bit of carbon will get stuck under a valve and show as low compression, until you get some fast-moving air through the valves.
What's the history? Any reason for problems with that cyl?
11-01-2009, 09:55 PM
#26
Nordschleife Master
Thread Starter
Wow, sorry to hear that!! (The compression, not the beer )
But do you mean "no compression" like zero psi, or just poopy compared to the others? Sometimes a bit of carbon will get stuck under a valve and show as low compression, until you get some fast-moving air through the valves.
What's the history? Any reason for problems with that cyl?
)But do you mean "no compression" like zero psi, or just poopy compared to the others? Sometimes a bit of carbon will get stuck under a valve and show as low compression, until you get some fast-moving air through the valves.
What's the history? Any reason for problems with that cyl?
! Yea 0 psi nothing zilch nada.. I wish i had some compression. Its always had an excellent service history. The problem was a piece off the throttle butterfly valve broke off and went into that cylinder.
