Having problems with your 1990 GMC Sierra ?
Engine wiring ( throttle body)
\015 I am in the process of wiring a 350 4BM that is out of a 95 Chevy 2 ton. i have dropped the engine into a 90 GMC 1500 Sierra. does any one know the correct wiring for the choke there are 3 wire on each Throttle Body but different config. already had to change most sensors due to wiring config. was lucky before the TB all sensors have interchanged nicely.\015
Repair Help & Product Troubleshooting for 1990 GMC Sierra
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.