Broncou15
New Member
- Joined
- May 14, 2019
- Messages
- 4
- Reaction score
- 0
- Points
- 1
- Location
- Ohio
- Vehicle Year
- 1990
- Make / Model
- Ford bronco
- Transmission
- Manual
Hey everyone I just bought a 1990 Bronco II 4x4 with a 2.9. I’m having trouble getting it to run properly it seems to be running rich and brakes up between 1500 and 2000 rpm under load. The check engine light is on, I tried using an analog voltmeter to reed the codes but the needle on the meter just stays pegged all the time. I also tried jumping the pins under the hood to get the light to flash but got nothing. I’ve tried both the “key on engine running” and “key on engine off” tests from the Bronco II Chilton’s book but nothing is happening. I’m thinking that maybe with it being a last year truck some of the things in the book may be different I know the wiring and some of the sensors shown in the book are not the same. This is my first obd1 truck I’ve built a carbureted 1969 bronco and an obd2 1999 ranger but never done anything with obd1. If anyone has come across this problem or has any ideas on what could be wrong or how to figure it out please let me know.