Service Engine Soon

**CamaroDMD** · 04-08-2008, 06:14 PM

OK, so I was driving my 2002 Camaro LE today and I noticed my "service engine soon" light was on. I just got this car and this is the first I have seen of this. I assume that its one of those programmed maintaince points newer cars have or a minor emissions issue. The car is driving just fine and I have noticed anything strange about it. Is that all this light tends to be...or is something I should be worried about?

Oh, the car has 47,777 miles on it and its a 2002 Camaro SS LE M6 SLP car.

**Hot Black Trans-Am** · 04-08-2008, 06:18 PM

Go to autozone and get scanned. Most likely O2 sensor.

**7camaro7** · 04-08-2008, 06:29 PM

get it scanned at autozone and have them to look the code up. also write the code down and come back home and look it up. we'll help you from there.

**onyx_rock** · 04-09-2008, 07:18 AM

Scan and then go here for DTC code

http://gearchatter.com/index.php?sid...ab9cf1d713a04a

**CamaroDMD** · 04-09-2008, 07:56 AM

The code I got is P0327 which codes for the front knock sensor. But, the autozone scan said oxygen sensor. I'm more inclined to trust the code...obviously, but I'm not sure how to proceed with fixing this.

**Phantom2kz** · 04-09-2008, 05:54 PM

Disconnect the knock sensor (KS) jumper harness connector located on the left side of the intake manifold.
Set the DMM to the 400K ohm scale.
Measure the resistance of the affected KS using the DMM connected to battery ground.
Is the resistance of the knock sensor within the specified range?
93-107K ohms

if less then short to ground/poss rubbed wire..
open /higher resistance then usually water in the knock sensor housing.

rotted out connector to knock sensor. when people clean engines with water then park them, water sits in knock sensor valley.....
prolly needs knock sensor,or 2. and harness + intake gaskets.

if you are in the ballpark at 93-107 ohms we will go from there.

**iggz** · 04-10-2008, 04:56 AM

I had the same prob back last summer... except my mech told me it was robbing me of power a little bit.. i dunno whether or not to believe that

**CamaroDMD** · 04-10-2008, 06:20 AM

Originally Posted by iggz

I had the same prob back last summer... except my mech told me it was robbing me of power a little bit.. i dunno whether or not to believe that

Did you do anything about it or did you just let it go? I'm wondering how much the repair cost?

Also, other than possibly robbing a little power...is there any reason why I can't let it go for a while?

**iggz** · 04-12-2008, 06:26 AM

oh dood u gotta get it fixed.. no point in drivin the car around with an SES wonderin if ur being robbed of power or not.. its a sensor.. cost me like 150 to replace including labor.. not too bad

**CamaroDMD** · 04-12-2008, 07:54 AM

Originally Posted by iggz

oh dood u gotta get it fixed.. no point in drivin the car around with an SES wonderin if ur being robbed of power or not.. its a sensor.. cost me like 150 to replace including labor.. not too bad

Thats not bad at all, I was thinking it would cost a lot more than that. It looks like the sensor would be hard to get to.

**iggz** · 04-12-2008, 05:13 PM

it is u gotta take off the intake mani

**Joe00SS** · 04-12-2008, 05:19 PM

Originally Posted by Phantom2kz

Disconnect the knock sensor (KS) jumper harness connector located on the left side of the intake manifold.
Set the DMM to the 400K ohm scale.
Measure the resistance of the affected KS using the DMM connected to battery ground.
Is the resistance of the knock sensor within the specified range?
93-107K ohms

if less then short to ground/poss rubbed wire..
open /higher resistance then usually water in the knock sensor housing.

rotted out connector to knock sensor. when people clean engines with water then park them, water sits in knock sensor valley.....
prolly needs knock sensor,or 2. and harness + intake gaskets.

if you are in the ballpark at 93-107 ohms we will go from there.

This almost makes me go try it on mine and I have no light on LOL, nice instructions!