Blacksheep Josh
Slinky+Escalator=Fun
- Joined
- July 31, 2006
- Messages
- 3,659
- Reaction score
- 15
- City, State
- Statesboro, GA
- Year, Model & Trim Level
- '01 Ford Ranger, RIP 93 X
Did not swap in a 19lb injectors, just the one 'faulty' injector that the tuner said was bad. Upon talking to him further, he said that in the small time he had the hood popped, all he did to diagnose the faulty fuel injector was popping up the spark plug wires and cylinder 3 removed showed no change in performance. After changing the 'faulty injector' I let it idle, tried to drive it, started popping, after driving it and being at operating temp and coming to a stop the engine died just like it was before. It was also throwing lean codes on both banks again.
I'm just lost at this point. Seems like if the fuel pressure was too high, it'd be sending too much fuel but it's throwing lean codes instead. Changing the fuel injector didn't change the behavior at all.
The only thing I can think is that the injector possibly isn't firing AT ALL, and it's just pumping a whole lot of air into the exhaust, possibly causing the lean codes? Likely?
Now that I have an income and am working, I can afford to work on this thing. I'm gonna throw a few things at it and see.
Things I'm doing this week:
1. noid light all fuel injector harnesses, make sure the ECU is sending the signal.
2. Test for spark on all spark plug wires.
3. Test for spark at all coil posts.
Something isn't working correctly somewhere, either an injector, a coil, a spark plug, a spark plug wire, or the ecu/tune. The more I definitively eliminate the closer I can get it. Something is bound to turn up being incorrect or broken. Makes no sense why it's throwing lean codes if the fuel pressure is technically sending too much fuel through the injector.
If I can't figure it out, I'll make someone a deal on this.
I'm just lost at this point. Seems like if the fuel pressure was too high, it'd be sending too much fuel but it's throwing lean codes instead. Changing the fuel injector didn't change the behavior at all.
The only thing I can think is that the injector possibly isn't firing AT ALL, and it's just pumping a whole lot of air into the exhaust, possibly causing the lean codes? Likely?
Now that I have an income and am working, I can afford to work on this thing. I'm gonna throw a few things at it and see.
Things I'm doing this week:
1. noid light all fuel injector harnesses, make sure the ECU is sending the signal.
2. Test for spark on all spark plug wires.
3. Test for spark at all coil posts.
Something isn't working correctly somewhere, either an injector, a coil, a spark plug, a spark plug wire, or the ecu/tune. The more I definitively eliminate the closer I can get it. Something is bound to turn up being incorrect or broken. Makes no sense why it's throwing lean codes if the fuel pressure is technically sending too much fuel through the injector.
If I can't figure it out, I'll make someone a deal on this.