MAP Sensor Issue

arolon1965 · 11-04-2008, 05:05 PM

Well, I have a 1999 Blazer LS 4d 4x4 4.3L that's spitting out a P0108 code (Manifold Absolute Pressure/Barometric Pressure Circuit High Input).

A bit of history:
Had a coolant leak that turned out to be a Intake Manifold Gasket. Cleaned the Intake Manifold really good, got a gasket set and re-installed. The car runs good but for the annoying Service Engine light. I replaced the MAP sensor, erased the code and now its back. Any ideas? Could it be an incorrectly routed vacuum line? Could it be that I didn't seal the Intake Manifold correctly? I used silicone like a MoFo but you never know.

Any assistance would be appreciated. A color Pic of the Vacuum lines would also be great.

arolon1965 · 11-05-2008, 04:37 PM

Yogi · 11-14-2008, 12:04 PM

Did you get it resloved? If not, you might try posting in the 4.3L section.

arolon1965 · 11-19-2008, 08:19 PM

didn't get it resolved. Will post in 4.3 section.

Thanks for the pointer Yogi.

Yogi · 11-20-2008, 09:24 AM

Good luck!

11-04-2008, 05:05 PM	#1
arolon1965 Registered User Join Date: Nov 2008 Posts: 5 Location: User is: OffLine	MAP Sensor Issue Well, I have a 1999 Blazer LS 4d 4x4 4.3L that's spitting out a P0108 code (Manifold Absolute Pressure/Barometric Pressure Circuit High Input). A bit of history: Had a coolant leak that turned out to be a Intake Manifold Gasket. Cleaned the Intake Manifold really good, got a gasket set and re-installed. The car runs good but for the annoying Service Engine light. I replaced the MAP sensor, erased the code and now its back. Any ideas? Could it be an incorrectly routed vacuum line? Could it be that I didn't seal the Intake Manifold correctly? I used silicone like a MoFo but you never know. Any assistance would be appreciated. A color Pic of the Vacuum lines would also be great. Last edited by arolon1965 : 11-04-2008 at 05:08 PM.
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11-05-2008, 04:37 PM	#2
arolon1965 Registered User Join Date: Nov 2008 Posts: 5 Location: User is: OffLine	Re: MAP Sensor Issue bump
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11-14-2008, 12:04 PM	#3
Yogi Registered (Ab) User Join Date: Feb 2008 Posts: 4,107 Location: League City, TX (Houston) User is: OffLine	Re: MAP Sensor Issue Did you get it resloved? If not, you might try posting in the 4.3L section.
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11-19-2008, 08:19 PM	#4
arolon1965 Registered User Join Date: Nov 2008 Posts: 5 Location: User is: OffLine	Re: MAP Sensor Issue didn't get it resolved. Will post in 4.3 section. Thanks for the pointer Yogi.
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11-20-2008, 09:24 AM	#5
Yogi Registered (Ab) User Join Date: Feb 2008 Posts: 4,107 Location: League City, TX (Houston) User is: OffLine	Re: MAP Sensor Issue Good luck!
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