Suspected exhaust leak caused by TMAP sensor
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Road Warrior
Joined: Nov 2007
Posts: 1,800
Likes: 307
From: Houston, Texas
Suspected exhaust leak caused by TMAP sensor
I thought I had an exhaust leak. It was popping on decel and between shifts. I lived with it for a while, waiting for a free weekend to look for it.
While waiting, the check engine light started coming on and off. After checking the stored code, "Intake temp high/open" I thought I had a seperate issue. After having to ask here on the forum where the hell the intake temperature sensor was since it's not really mentioned in the service manual, I learned that it was part of the MAP sensor in the intake. After finding out the TMAP sensor was $90, I decided it couldn't hurt to try cleaning it first.
I took some sensor friendly carb cleaner, held open he throttle plate and sprayed the crap out of the TMAP sensor. I cleared the code and went riding with friends.
I was so excited that the check engine light quit coming on that it took me half the day to realize the exhaust pop was gone too. Apparently the TMAP sensor had been so dirty, it wasn't reacting fast enough and causing the exhaust popping. Two tanks of gas later and still no check engine light or exhaust popping.
I thought I'd share in case this happened to anyone else. What I thouhgt was two seperate issues that would take time and money to repair, it was fixed by something as simple as spraying some carb cleaner.
FYI - 08 RKC with 65,000 miles
While waiting, the check engine light started coming on and off. After checking the stored code, "Intake temp high/open" I thought I had a seperate issue. After having to ask here on the forum where the hell the intake temperature sensor was since it's not really mentioned in the service manual, I learned that it was part of the MAP sensor in the intake. After finding out the TMAP sensor was $90, I decided it couldn't hurt to try cleaning it first.
I took some sensor friendly carb cleaner, held open he throttle plate and sprayed the crap out of the TMAP sensor. I cleared the code and went riding with friends.
I was so excited that the check engine light quit coming on that it took me half the day to realize the exhaust pop was gone too. Apparently the TMAP sensor had been so dirty, it wasn't reacting fast enough and causing the exhaust popping. Two tanks of gas later and still no check engine light or exhaust popping.
I thought I'd share in case this happened to anyone else. What I thouhgt was two seperate issues that would take time and money to repair, it was fixed by something as simple as spraying some carb cleaner.
FYI - 08 RKC with 65,000 miles
Road Master
Joined: Sep 2010
Posts: 752
Likes: 23
From: Acton, CA
Did your problem ever return? I am having similar issues... sputtering/CE light/stalling, and codes pointing to the map sensor... I removed the sensor and it was filthy, so I cleaned it with MAF cleaner and it looks much better but still has a little black gunk on it, but before I put it back on and re-assemble everything, I'm wondering if I should just replace it.
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