reseting the engine check light - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Where's my car? · 06-08-2007, 08:16 AM

Anyone know how to reset the engine check light,

i already tried unplugging the battery for a day. Turned off for a few days, then turned right back on. Thanks

JAAY · 06-08-2007, 08:19 AM

Not to be a jerk... Do you know why the cell is on? Def. shoul have it checked out. Go to autozone, they do it for free.

steve00s · 06-08-2007, 09:22 AM

You can purchase an OBDII code reader for under a $100 just about anywhere. I bought one at Walmart for about $75. It will read the code on a small display so you get some idea of why the CEL is tripping. The device also allows you to clear the code.

CJ_Boxster · 06-08-2007, 09:34 AM

ummm, its going to keep turning on until you fix whatever the hell is making it turn on. Take Jaay and Steve00's advice & get it scanned by an ODBII scanner at autozone... its free. Write down the P-code or codes and bring them here and we can help yah out.

FrayAdjacent · 06-08-2007, 11:04 AM

Figure out what it is before you reset it.

Them engineers at Porsche didn't engineer lights that turn on for no damn reason!

mikefocke · 06-08-2007, 11:21 AM

"Maint Required" or something similar which some manufacturers put on their cars to remind you of the factory service interval.

Porsche's CEL is different, it is triggered when something goes wrong and the "codes" people talk of are clues to what is wrong and how serious it is. They can range from "trivial" to "don't drive this or you risk blowing up your engine.

So the advice here to find out the problem that is causing the CEL is spot on. And you do that by getting the code read and then:
calling a Porsche dealer
or posting the codes here.

To get the codes read, borrow or buy a reader or see if one of the auto parts stores will read the codes for you. The code readers are simple plug in devices and the socket is the the left of the steering wheel.

Porsche CELs aren't things to be ignored until you know what caused them.

Have you priced a Porsche engine recently?

Where's my car? · 06-13-2007, 02:39 PM

The code readout for my car was P1128 and p1130

Anyone can help me, and tell me whats wrong? Thanks a Whole Lot

RandallNeighbour · 06-13-2007, 02:49 PM

Those codes are for your oxygen sensors. They're about $113 each from www.oxygensensors.com and you can change them yourself in 45 minutes. It's real easy. However, you must do all four at once as they don't play nicely when some are old and one or two are new.

For more information on CE light codes, check the page on my web site. I have them all listed.

ChrisZang · 06-13-2007, 03:07 PM

True,

but when you get readouts on both cylinder banks at the same time I usually first suspect a problem which affects both cylinder banks. It's less likely that Oxygen sensors on both sides die at the same time and more likely that one COMMON component bit the dust. The MAF might be the culprit here...

There are many threads about diagnosing an fixing MAF related problems, simply search the forum for MAF

Quote:

Originally Posted by RandallNeighbour

Those codes are for your oxygen sensors. They're about $113 each from www.oxygensensors.com and you can change them yourself in 45 minutes. It's real easy. However, you must do all four at once as they don't play nicely when some are old and one or two are new.

For more information on CE light codes, check the page on my web site. I have them all listed.

FrayAdjacent · 06-13-2007, 05:04 PM

Ok, you know what the codes are.

I had a P1129 back in January or February... cleared it and it never came back.

I would clear it and drive the car. If the codes return, you would probably then do well to look into the O2 sensors.