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08-31-2013, 10:37 AM
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#1 |
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Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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MAP Sensor readings
I have a f.a.s.t. LSXRT intake that acts like there is a vacuum leak. We are trying to diagnose it. The Map sensor is giving off a reading of 4.8 volts while off and a 1.31-1.45 volts while running with 1.58 grams per second idling.
does anyone know if that is a normal range? Here is a link of it running and the throttle lag. https://www.youtube.com/watch?v=qTmL...e_gdata_player
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Check out my build: 1972 LQ4 Swap http://67-72chevytrucks.com/vboard/s...=1#post5427693 |
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08-31-2013, 10:29 PM
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#2 |
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Registered User
Join Date: Jan 2010
Location: Loveland, CO
Posts: 1,921
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Re: MAP Sensor readings
Not too familiar with the FAST intakes, but is the 1.58 g/s the MAF output? And have you had it tuned since the intake was installed?
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Zach 1970 Chevrolet Custom Camper K20 1971 GMC Super K2500, 12V/NV4500 swap in progress 1971 Chevrolet Custom C10 1972 Chevrolet Custom Deluxe C20, 5.3/4L60E 1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi 2004 GMC Sierra 2500HD, LB7/Allison, CCSB 2005 GMC Sierra 1500, 5.3/4L60E, CCSB |
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09-01-2013, 09:50 AM
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#3 |
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Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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Re: MAP Sensor readings
We ended up pulling another MAP Sensor from another truck it and worked perfectly. Now i just have to figure out why i was getting good readings with a bad MAP Sensor.
__________________
Check out my build: 1972 LQ4 Swap http://67-72chevytrucks.com/vboard/s...=1#post5427693 |
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Linear Mode
