dprantl

It is possible that the LH adapted to a problem so much that once the problem is fixed, the car can no longer run properly. This has happened to me in the past when an intake pipe by the intercooler blew off on one of my other cars (LH 2.4.2). I limped home like that and reconnected it, but the car would refuse to run properly. It ran fine after disconnecting/reconnecting the battery. The LH adapted so much to the huge air leak that once the leak was fixed, it could not adapt back. I didn't see you mention fixing any problems like this, however...

Dan
'91 928GT S/C 475hp/460lb.ft

Mongo

What ground did you clean? You had indicated it in a prior post. There are some grounds below the airbox on the passenger side for the LH and EZK. Was it those?

Paul Bakker

I meant the goundcable in the hatch (rear) which comes directly from the battery.

Paul Bakker

You mean it operates like a Microsoft Windows computer sometimes ......

Mongo

I should probably try and clean that one on mine too. I can't even get the wingnut off. It's like someone used loctite on it. That's probably not a good thing and corrosion may have froze it.

Landseer

IIRC, the ground for the O2 sensor is buried deep under the fuel lines on the back of the block.

Mongo

You are correct. MP IX pretty much is everything pertaining to the LH & EZK.