where is throttle sensor located ?

davidmelendy
0

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

7jimmy7
16,785

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

thedoctor
950

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 out of 1 people think this is helpful.
dandyoun
91,775

TPI

1 out of 1 people think this is helpful.
dandyoun
91,775

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

Best Answer
dandyoun
91,775

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

Add photo

Related Questions

  • Location of temperature switch that turns cooling fan on. 1 answer

    1986 Chevrolet Corvette

    -

    Maintenance & Repair

  • speed sesor location 3 answers

    1991 Chevrolet Corvette ZR1

    -

    Maintenance & Repair

  • Can't Locate Parts for my 1985 1 answer

    I have a 1985 that's had fuel problems for the last few years. Running too rich, sputtering, difficult starting. We replaced everything on the top end - injectors, mass airflow sensor, fuel pressure r...

    1985 Chevrolet Corvette

    -

    Maintenance & Repair

  • Cooling Fan Problem 2 answers

    Our electric engine cooling fan comes on at cold start up and won't shut off unless I unplug the relay. The wiring gets very hot at the relay plug. Is the relay stuck in fan 'on' position?

    Chevrolet Corvette

    -

    Maintenance & Repair

  • WHERE IS THE THROTTLE STOP SWITCH LOCATED? 2 answers

    I HAVE A 95 LUMINA THAT WHEN COLD JUST KEEPS DYING TOOK IT IN THEY SAY WE CANT FIND ANYTHING WRONG REALLY? SO IS THERE A THROTTLE STOP SWTICH AND WHERE IS IT LOCATED/

    1995 Chevrolet Lumina 4 Dr LS Sedan

    -

    Maintenance & Repair

Corvette

Looking for a Used Corvette in your area?

CarGurus has 16,948 nationwide Corvette listings starting at $2,995.

ZIP:

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 califcarson
califcarson
Reputation 1,720
#2 carGrrl
carGrrl
Reputation 1,230
#3 Tom Demyan
Tom Demyan
Reputation 1,050
View All

Related Models For Sale

Used Chevrolet Camaro"
203 Great Deals out of 25,586 listings starting at $2,995
Used Ford Mustang"
311 Great Deals out of 42,428 listings starting at $1,900
Used Porsche 911"
124 Great Deals out of 4,835 listings starting at $11,995
Used Dodge Charger"
314 Great Deals out of 28,770 listings starting at $2,950
Used BMW M3"
23 Great Deals out of 1,021 listings starting at $4,021
Used Mercedes-Benz SL-Class"
85 Great Deals out of 3,724 listings starting at $4,500
Used Ford F-150"
2,213 Great Deals out of 205,784 listings starting at $991
Used BMW 3 Series"
1,011 Great Deals out of 34,800 listings starting at $650

Used Cars For Sale

2016 Chevrolet Corvette For Sale
13 Great Deals out of 7,942 listings starting at $47,705
2015 Chevrolet Corvette For Sale
13 Great Deals out of 913 listings starting at $46,999
2014 Chevrolet Corvette For Sale
11 Great Deals out of 888 listings starting at $44,900
2013 Chevrolet Corvette For Sale
13 Great Deals out of 412 listings starting at $29,786