where is the wire for the knock sensor routed to or at ona 1990 C3500 Chevy dually
270

Asked by dualls Nov 15, 2014 at 04:24 PM about the 1990 Chevrolet C/K 3500 Extended Cab LB RWD

Question type: Maintenance & Repair

I have 1990 C3500 Chevy 454 TBI That I purchased used, I have done some repairs to it and all is well runs great but the engine  light keeps coming on, I checked it with a OBD and it gives the code for the knock sensor which I have purchased along with the wire connector but I cant locate the original connector wire the trace in the repair manual said it goes to B15 on the ECM but that is on the 1994 model not the 1990?? are they the same? I don't want to fry the system

2 Answers
270

dualls answered 10 years ago

I just found this site loads of info, my trucks knock sensor hooks to the spark control mod check the site out CHEVYTHUNDER.COM

4 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • where is the wire for the knock sensor routed to or at ona 1990 C3500 Chevy dually 2 Answers

    I have 1990 C3500 Chevy 454 TBI That I purchased used, I have done some repairs to it and all is well runs great but the engine light keeps coming on, I checked it with a OBD and it gives the code fo...

    1990 Chevrolet C/K 3500 Extended Cab LB RWD

    -

    Maintenance & Repair

  • I have a 1990 Siverado with 454 engine. Where is the crakshaft position Sensor? 2 Answers

    I am attempting to fix my truck. It stalls, and has no power on acceleration. I have changed almost everything except for the ecm computer, the external spark controller and the CRANKSHAFT POSITION SE...

    1990 Chevrolet C/K 3500 Silverado Extended Cab LB 4WD

    -

    Maintenance & Repair

  • How to Troubleshoot my Chevy C3500 AC System 4 Answers

    Hi all, I have a 2000 Chevy C3500. I am having probelms with my AC. I noticed the problem awhile back. My compressor would not engage. The AC system worked fine last summer and now that it is get...

    2000 Chevrolet C/K 3500 Crew Cab LB 4WD

    -

    Maintenance & Repair

  • Why sould the fuel cut off after 10 to 20 seconds at idle 5 Answers

    1988 Chevy 454 Dually. TBI . New distributor. new Delphi fuel pump (11.5 psi) Fresh gas. Eliminated the air pump. Engine would keep running if I feathered the throttle when I had only 6 psi on o...

    1988 Chevrolet C/K 3500 Silverado Extended Cab LB RWD

    -

    Maintenance & Repair

  • 1988 chevy c3500 5.7l 350 sm465 4 speed manual 9 Answers

    Recently had a miss when vehicle warmed up but fixed it after replacing dist/rotor/ button/ig. coil/pickup coil/wires/spark plugs/IACV/TPS/fuel pump/fuel filter. But hidden under all that is a new or...

    1988 Chevrolet C/K 3500

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet C/K 3500 Questions

CarGurus Experts

  • #1
    Joe_2019
    Reputation
    420
  • #2
    Gene Arnett
    Reputation
    410
  • #3
    Keith Massey
    Reputation
    220
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet C/K 2500
1 listing
Used Chevrolet Suburban
10 Great Deals out of 550 listings starting at $7,500

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. Content will be removed if CarGurus becomes aware that it violates our policies.