MAF sensor?
#1
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New member, first-time Blazer owner.
2000 model with 4.3L Vortec, 52k miles.
The Service Engine light came on a few days after we got it home. O'reilly's code reader says "Fuel trim bank two condition" and "Fuel trim bank one condition". It says suspect a MAF sensor fault.
Does this sound right to you all?
The truck is running great, but the light came back on after the code reader cleared the faults.
I've found a How-To video on testing the MAF sensor...but not sure where it's located. I'm not much of a mechanic (electronics engineer), but I can do light stuff like this. I have a multimeter and an O-scope to test the frequency ouput once I locate the sensor.
I don't want to hang a new sensor on it for $100 before I test to see if it's the problem.
Is it pretty easy to spot, once somebody directs me to it's locaton?
Thanks in advance for any/all advice!
Oh, I just found Garry2000blazer's MAF sensor writeup in the DIY section! Thanks Garry!
2000 model with 4.3L Vortec, 52k miles.
The Service Engine light came on a few days after we got it home. O'reilly's code reader says "Fuel trim bank two condition" and "Fuel trim bank one condition". It says suspect a MAF sensor fault.
Does this sound right to you all?
The truck is running great, but the light came back on after the code reader cleared the faults.
I've found a How-To video on testing the MAF sensor...but not sure where it's located. I'm not much of a mechanic (electronics engineer), but I can do light stuff like this. I have a multimeter and an O-scope to test the frequency ouput once I locate the sensor.
I don't want to hang a new sensor on it for $100 before I test to see if it's the problem.
Is it pretty easy to spot, once somebody directs me to it's locaton?
Thanks in advance for any/all advice!
Oh, I just found Garry2000blazer's MAF sensor writeup in the DIY section! Thanks Garry!
Last edited by rriddle3; 09-18-2010 at 05:52 PM. Reason: COMBINING CONSECUTIVE POSTS
#2
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UPDATE: I filled up with 89 octane this morning and the Service Engine Soon light went off and has stayed off all day! Fingers crossed. I hope it was just the cheap stuff that caused it.
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MikeForS
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