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Old Sep 23, 2014 | 11:00 AM
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So here's one for the forum. My friend just bought a 2001 convertible.
The other day she was telling me about the CE light and asked if I'd pull the codes from the DIC and clear them. The ones that caught my attention were P0133 and P1514. Now after looking these up I noticed that her MAF sensor isn't mounted where I'd expect to see it. It's just in front of the air bridge coupler in front of the throttle body. Not down next to the air filter. She does have a black wing with the air bridge from the Varram, interesting set up. Any thoughts on this?
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Old Sep 23, 2014 | 01:17 PM
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One is an O2 Sensor issue and the other is a MAF calibration issue. The maf cal could be because someone moved the maf and didnt retune it

If it were me, I would clean the MAF and TB/ Throttle blade, look for any vacuum leaks. Especially on the PCV system rubber fittings and any ducting betweem the MAF and TB.

Clear all the DTCs and see what comes back.
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Old Sep 24, 2014 | 03:30 PM
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Originally Posted by Bill Curlee
One is an O2 Sensor issue and the other is a MAF calibration issue. The maf cal could be because someone moved the maf and didnt retune it

If it were me, I would clean the MAF and TB/ Throttle blade, look for any vacuum leaks. Especially on the PCV system rubber fittings and any ducting betweem the MAF and TB.

Clear all the DTCs and see what comes back.
Bill Curlee, Thanks for the input. Gave the details to the owner of the 2001 and told her to let me know if the CE light comes back and if the codes are the same. If she wanted to I'd relocate the MAF to where it's supposed to be.
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Old Sep 24, 2014 | 03:51 PM
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Originally Posted by NTSOMLO
Bill Curlee, Thanks for the input. Gave the details to the owner of the 2001 and told her to let me know if the CE light comes back and if the codes are the same. If she wanted to I'd relocate the MAF to where it's supposed to be.
Please make sure the owner also knows that there are two different cleaners she'll need to clean the MAF and TB. Each has its own specific cleaner.
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Old Sep 24, 2014 | 10:39 PM
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Originally Posted by Corvette_Ed
Please make sure the owner also knows that there are two different cleaners she'll need to clean the MAF and TB. Each has its own specific cleaner.
That's overkill I think. Every vehicle I've ever had always had MAF cleaner on the MAF, and Carb cleaner for the TB. I've even used carb cleaner on the MAF, as well as rubbing alcohol and a Q-Tip and never had an issue.

If you take the MAF ends off and clean it you'd be VERY surprised what the MAF cleaner itself is missing...
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Old Sep 25, 2014 | 09:48 AM
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Originally Posted by dr_whigham
That's overkill I think. Every vehicle I've ever had always had MAF cleaner on the MAF, and Carb cleaner for the TB. I've even used carb cleaner on the MAF, as well as rubbing alcohol and a Q-Tip and never had an issue.

If you take the MAF ends off and clean it you'd be VERY surprised what the MAF cleaner itself is missing...
It might be overkill, but it's also the right and recommended way to do it. For someone learning this process for the first time, the best way to teach them how to do it is to teach them the right way.
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Old Sep 25, 2014 | 10:46 AM
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Originally Posted by Corvette_Ed
It might be overkill, but it's also the right and recommended way to do it. For someone learning this process for the first time, the best way to teach them how to do it is to teach them the right way.
It wasn't meant to be taken offensively at all. I just seriously didn't see the need for it. MAF cleaner and Carb cleaner work perfectly fine.
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