Cobalt threw 2 codes.

[thesteed46]

My dad has been driving the cobalt and he drives like a grandpa. Apperently the light has been on for a while.

The codes are:

P0102
P0300

We went to Autozone and had them read it. As for the first code I know it has something to do with the MAF or MAP sensor and the only thing I ever did to the MAF was clean it once a while ago. Regarding the misfire code I know the sparkplugs haven't been change since we have owned it, about 25xxx miles. So I'm kind of thinking that might be the problem.


So I guess my questions are:

1) Are there any common problems with MAFs or MAPs going bad on LE5s?
2) What should my gap be on the spark plugs?

Thanks.

[rossshady120]

My dad has been driving the cobalt and he drives like a grandpa. Apperently the light has been on for a while.

The codes are:

P0102
P0300

We went to Autozone and had them read it. As for the first code I know it has something to do with the MAF or MAP sensor and the only thing I ever did to the MAF was clean it once a while ago. Regarding the misfire code I know the sparkplugs haven't been change since we have owned it, about 25xxx miles. So I'm kind of thinking that might be the problem.



So I guess my questions are:

1) Are there any common problems with MAFs or MAPs going bad on LE5s?
2) What should my gap be on the spark plugs?

Thanks.

I throw p102 on start up usually mostly all the time, i would imagine its my hacked up wiring job that TORQ did...



I need a new engine harness

[Steddy]

Clean the MAF, replace the plugs with OEM iridiums, and go with it

[thesteed46]

Alright might have to do that. I'll pull them one day this week to see how they look.

[montecarloman]

Good chance that you have a broken wire in the insulation @ the MAF connector. Tug on the wires one at a time near the connector, if the wires broken the insulation will stretch out and break. If you find a broken wire its 99% likely that the P0300 set because the cars been driven with the mafunctioning MAF.

[thesteed46]

Alright well I took out the MAF and it looked fine, the wires were solid also.

Also pulled the plugs and have some pictures. I can never remember which side Number 1 is, but I started at the passenger side.

#1)

#2)

#3)

#4)

[Farmer]

Clean the MAF, replace the plugs with OEM iridiums, and go with it

This.

[thesteed46]

According to NGK's website they look pretty normal.

[Farmer]

Mileage on plugs?

[thesteed46]

I bought the car with 45k on it and now it's at 70k. So that's at least 25k, not sure if the dealer put new ones in.

[Farmer]

Doubtful.

It's like $30 for plugs.

Change them and see what happens.

Honesly, I ran coppers in mine for 20k with no issues, that was two sets of plugs, though.

Irids are cheaper in the long run.

[Steddy]

Plugs look fine to me.

[thesteed46]

Alright cool. I guess I'll go ahead and clean the MAF, clear the codes and see what happens.

[YelloEye]

#1 is at the front of the motor where the cam gears are so you got it right.