- Location
- Roanoke VA
Specs;
90' 4.0(newly rebuilt), AW4, NP 231, swapped in 29 spline 8.25
All RENIX inputs/outputs are new;
IAC, MAT, CTS, fuel pump and reg., TPS, O2, Reman dizzy, injectors, CPS, Knock sensor, I probably missed something but trust me its new!(this is a restoration project)
OK I have had some detonation/valve pinging issues on acceleration, and it just seems to lag. Idles fine but low(350-450 rpm) cruises fine, no hesitation misses or stumble. It just seems lean on accel. I had originaly thought it was the EGR, but I ran it blocked off with a plate for a week or so to try it and no difference. The EGR/solonoid is new as well. So I decided to clean the ballast resistor contacts this a.m. and check the resistance. The resistance was 1.8 ohms!
Could this cause my pump to run slow/low pressure and lean out to cause the detonation?
Can I run it without the ballast resistor? I don't mind the noise.
TPS adjustment issue; I can only get it to about 81% on the tranny side and .75 on the flat connector side. If I try to get one side dead on the other goes out of whack! My input voltage on the square connector(tranny side) is 4.72. Is that normal?
The issue that I am having that I think is TPS related is the tranny upshifts when I let off the gas unless I'm at highway speed, even if I am going down hill. The tranny shifts fine and is a solid shifter otherwise.
Give me some advice/opinions.
90' 4.0(newly rebuilt), AW4, NP 231, swapped in 29 spline 8.25
All RENIX inputs/outputs are new;
IAC, MAT, CTS, fuel pump and reg., TPS, O2, Reman dizzy, injectors, CPS, Knock sensor, I probably missed something but trust me its new!(this is a restoration project)
OK I have had some detonation/valve pinging issues on acceleration, and it just seems to lag. Idles fine but low(350-450 rpm) cruises fine, no hesitation misses or stumble. It just seems lean on accel. I had originaly thought it was the EGR, but I ran it blocked off with a plate for a week or so to try it and no difference. The EGR/solonoid is new as well. So I decided to clean the ballast resistor contacts this a.m. and check the resistance. The resistance was 1.8 ohms!
Could this cause my pump to run slow/low pressure and lean out to cause the detonation?
Can I run it without the ballast resistor? I don't mind the noise.
TPS adjustment issue; I can only get it to about 81% on the tranny side and .75 on the flat connector side. If I try to get one side dead on the other goes out of whack! My input voltage on the square connector(tranny side) is 4.72. Is that normal?
The issue that I am having that I think is TPS related is the tranny upshifts when I let off the gas unless I'm at highway speed, even if I am going down hill. The tranny shifts fine and is a solid shifter otherwise.
Give me some advice/opinions.
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