I changed the stock plugs on my 92k mi 2003 AT G with some NGK iridums. But I forgot to plug the MAF sensor in. I started it and revved it a few times, and noticed some misfire. Also the VCD and Check engine lights came on. I turned off the engine and then noticed the MAF sensor was not plugged in, so I plugged it in, and have driven 60 miles since. There is no more misfire and it runs smooth, but the check engine light is still on?? Other than that, I think so far I am getting better MPG with the iridiums

 

Go somewhere and have the codes canceled and you should be fine.

 

or take the terminal off ur battery for a min or 2 and put it back out and the code should be clear

 

Do you know that to be true or are you just spitting out random advice?

Disconnecting your battery is not going to clear that DTC. The OP will need the get a hold of an OBD2 reader that is capable of clearing DTCs or else go to the dealership. The dealership will likely want to do some kind of diagnostic procedure prior to clearing the code so it probably won't be free.

 

Is there an easy way to clear the code by myself?

 

Sure, if you can get your hands on an OBD2 reader with reset capability. Some readers will only read and not clear codes.

 

Do you think autozone can do it?

 

No idea if they will do it or not. You used to be able to go to AZ and borrow an OBD2 reader but some change in policy ended that.

 

Only stores with on-site shops can offer ODB2 loaners. Since PepBoys does service, they still offer them.

 

no i wasnt throwing out random advice, ive actually did this to reset a few codes take the neg terminal off for a min and plug it back up it resets everything and if the problem is fixed then it throws the code out

 

Yes disconecting the battery cable WILL clear the CEL for sure. Also you can do a ECU reset by:
1. Turning the IGN on to acc wait 3 seconds
2. press and release the gas pedal all the way 5 times within 5 second
3. now wait 7 seconds
4. now hold the gas pedal in for 10 seconds release the gas pedal for a second and then press it in again for 10 more seconds.

the timing is pretty critical on the first two steps so use i stop watch and you will have it down the first time. Also after doing this let your car idle for a good 10 min so it can kinda relearn everything.

 

Pump the brakes a few times to discharge the ECU capacitors when you do that kind of reset method

 

It appears that I was wrong about being able to disconnect the battery to reset the CEL for this fault. My apologies to smokincoupe. I might have confused it with the DTC created by an airbag fault. It got me to thinking and I just went out and tested it. Started the engine with MAF sensor disconnected. Triggered CEL. Disconnected battery for 20 minutes. Restarted engine and CEL was gone. Sorry, my bad.

 

Did you still have to do that odd thing with pumping the gas?

btw sarcasm is hard to pick up in forums, no facial expression or tone of voice....basically meaning i read that thing over 10 times lol.

 

pumping the brakes isnt 100% neccasary but some do it. Its easier to touch the negative battery cable to the positive, doing so will discharge all strored voltage in the vehicle and computers but it wont ruin anything either