where is throttle sensor located ?

Asked by Mar 16, 2014 at 01:30 AM about the 1985 Chevrolet Corvette

Question type: Maintenance & Repair

looking for the reason the engine surges and dies when stopped at light or in traffic. Runs
great on the hwy. Will run if put in neutral after coming to stop. Light pedal will keep rpm's
steady, otherwise rpm will fluctuate from450 to 800 at random. Could it be the throttle
control module and how and where is it on the 1985 corvette motor. Thanks.

5 Answers

21,085

it has to be connected to the throttle shaft to turn thru its 3 point phases a simple pontimeter varying low voltage to pcm, yeah they can short out, rarely though

1,150

Not sure what all that jimmy7 crap ment. You should have .5 Volts to the PCM at idle position and 4.5 V at wide open throttle. do this testing key on engine off, KOEO. your tuned port engine has a throttle body mounted to the front of the intake plenum, at the rear of the big ribbed hose from the air cleaner. the TPS, throttle position sensor is on the throttle body opposite the throttle cable, passenger side

1 of 1 people found this helpful.
113,245

TPI

1 of 1 people found this helpful.
113,245

Also check and clean your idle air control. It's located directly below the throttle position sensor.

Best Answer Mark helpful
113,245

As the doctor mentioned about tps it should be .5 volts at idle to 4.5 at full throttle. You should show a smooth climb in voltage as you move throttle to full open and a smooth decline as you return it to full closed position. Hook your digital volt meter to "A" and "B" marked terminals to check it for proper function.

Your Answer

Corvette

Looking for a Used Corvette in your area?

CarGurus has 22,275 nationwide Corvette listings starting at $2,500.

ZIP:

Chevrolet Corvette Experts

  • #1
    John Carson
    Reputation
    2,390
  • #2
    Vincent Parker
    Reputation
    1,530
  • #3
    carGrrl
    Reputation
    1,440
View All

Related Models For Sale

Used Chevrolet Camaro
424 Great Deals out of 31,920 listings starting at $2,395
Used Ford Mustang
752 Great Deals out of 42,817 listings starting at $1,300
Used Dodge Charger
460 Great Deals out of 27,845 listings starting at $2,795
Used Porsche 911
112 Great Deals out of 4,830 listings starting at $10,894
Used Ford F-150
2,222 Great Deals out of 182,674 listings starting at $1,500
Used BMW M3
49 Great Deals out of 1,464 listings starting at $4,990
Used BMW 3 Series
1,041 Great Deals out of 31,744 listings starting at $1,000

Used Cars For Sale

2017 Chevrolet Corvette For Sale
10 Great Deals out of 8,293 listings starting at $45,990
2016 Chevrolet Corvette For Sale
16 Great Deals out of 1,308 listings starting at $42,500
2015 Chevrolet Corvette For Sale
12 Great Deals out of 758 listings starting at $41,700
2014 Chevrolet Corvette For Sale
16 Great Deals out of 855 listings starting at $35,990
2013 Chevrolet Corvette For Sale
19 Great Deals out of 342 listings starting at $24,790

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.