coil pack repair?

[kunkstyle]

2 days into 996 ownership and I'm already asking repair questions :huh:

Driving it back home the other day the CEL rang in. Won't have a chance to check it until thursday, but the last owner said that he recieved an "air to fuel mixture lean on banks 1 and 3" CEL any time he drove it in wet weather (which I was doing at the time).

If this is the same CEL (which I'm hoping), from viewing other threads I've gathered that it could be a coil pack issue. The previous owner's tech thought it could be an MAF issue as well. Any thoughts/suggestions/troubleshooting tips? Is it a problem to drive it for a month until I can get it fixed? No idle issues, temps, oil pressures etc. are good as well.

Also, if it is a coil pack replacement, is it a difficult DIY to do (not an expert mechanic in any sense of the word, but I can usually fumble my way around through a lot of jobs)? Or could this be a shop job?

Thanks in advance for the help (and my apologies if this is in the wrong thread).

- - - edit - - -

Forgot the specs...

2000 996

C2 Coupe

Manual transmission, US spec

Edited April 7, 2008 by kunkstyle

[Loren]

Without the fault code(s) it is anybodies guess.

You need to get eht fault codes read and report back here.

[1schoir]

2 days into 996 ownership and I'm already asking repair questions :huh:

Driving it back home the other day the CEL rang in. Won't have a chance to check it until thursday, but the last owner said that he recieved an "air to fuel mixture lean on banks 1 and 3" CEL any time he drove it in wet weather (which I was doing at the time).

If this is the same CEL (which I'm hoping), from viewing other threads I've gathered that it could be a coil pack issue. The previous owner's tech thought it could be an MAF issue as well. Any thoughts/suggestions/troubleshooting tips? Is it a problem to drive it for a month until I can get it fixed? No idle issues, temps, oil pressures etc. are good as well.

Also, if it is a coil pack replacement, is it a difficult DIY to do (not an expert mechanic in any sense of the word, but I can usually fumble my way around through a lot of jobs)? Or could this be a shop job?

Thanks in advance for the help (and my apologies if this is in the wrong thread).

Kunkstyle:

The fact that it only happens when driving in wet weather certainly points to coil packs.

The most difficult part of replacing the coil packs is getting the car up safely on jackstands and accessing them.

Go to this link for a good set of photos and instructions posted by Chris in NH on the topic:

http://www.ppbb.com/boards/ppbbphp/showfla...rue#Post1289587

Regards, Maurice.

[Stefan]

This is not a particularly difficult job and you should be able to fumble your way through it. :P

[kunkstyle]

Thanks for all the comments. Looking at that link it seems pretty doable. I'll check the codes when I pick up the durametric software on thurs and report back.

[kunkstyle]

Got the codes off it today.

P1130 : Porsche fault code 361 - Oxygen sensing adaptation

idle range bank 2

P1128 : Porsche fault code 360 - Oxygen sensing adaptation

idle range bank 1

[1schoir]

Got the codes off it today.

P1130 : Porsche fault code 361 - Oxygen sensing adaptation

idle range bank 2

P1128 : Porsche fault code 360 - Oxygen sensing adaptation

idle range bank 1

Kunkstyle:

Those codes often indicate a faulty MAF.

Regards, Maurice.

[kunkstyle]

Thanks for the quick reply. I'll try cleaning it this weekend. (And stay out of the wet weather!)