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TPS Sensor
Trying to track down my intermittent accell problem. Engine idles good,starts good. Fuel mixture good. But from time to time, accelerating from a low rpm, it will just not rev up like the engine does not know the throttle is opening. Could their be a bad spot on the TPS sensor?
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3.3 ltr, stock compression, efi, twin turbo - no intercooler. |
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12-08-2016, 04:51 AM
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,141
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What car? Vacuum leaks will exhibit this running condition.
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12-08-2016, 05:36 AM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Are we talking about a 3.2 Motronic/Carrera engine? Could be the TPS which you can check for function with a multimeter for it's resistance values throughout the travel range.
Also could be a faulty airflow meter. The airflow meter has a wiper arm that pivots and tracks on electrical contacts inside the unit. Over time that contact gets worn and can create a driveability issue.
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Kevin L '86 Carrera "Larry" |
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12-08-2016, 10:01 AM
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Registered
Join Date: May 2005
Location: Loxahatchee, florida
Posts: 2,894
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the tps is only a switch on a carrera. turns off the AC when at full throttle. Your AFM is likely not working. this would be a good time to make the MAF mod and get some more horsepower.
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88 turbo Guards red Targa slant nose, and yes I am a horsepower junkie, 3.4liter,7.5 to 1 JE pistons, Adjustable WUR, Imagine fuel head, 1 bar waste gate headers,allthe cis toys. Now apart to become the next EFI monster. fabbing my own intake, headers Individual throttle bodies, MS-3, pauter rods, Xtreme twin plugged heads, gt-2 evo cams cop's. 2019 Silverado 6.2L |
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12-09-2016, 04:29 AM
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Twin turbo 935
Carrera
Speedster
