I was just wondering how to tell if a Renix jeep is in limp mode?
I've been trying to track down a poor performance/mpg problem and can't figure it out. My idle is nowhere near solid, although it's always at a consistent 600-700 RPM's. What I mean by "not solid" is that the needle fluctates quickly by small increments, and you can hear the engine running rough. It idles this way cold and hot.
The other issue is that it always stalls out on the first stop. I thought I cured this when I fixed my high idle (injector o rings were leaking) but it's still there, maybe not as pronounced.
Also, I often hear of people praising the low end torque of the 4.0, but mine always seems to lag until around 1800 RPM's. Is that low? I have 235s, 3.07's and an AX15, and when I let the clutch out slowly, with some gas, it just seems like it wants to die and barely has enough power to get itself moving. Runs good at high RPM, though.
I'm going to check my plugs tomorrow, and the connectors at the firewall & ECM for corrosion. I have a 2 year old O2 sensor, a new tps, cleaned ford injectors, new & cleaned IAC, cleaned TB, new intake manifold gasket and a recently fixed exhaust manifold.
It just seems to be low on power, and running rich. It has a cat, but you can definitely smell that terrible umburnt gasoline smell at all times.
So yeah, does this sound like limp mode? Or is that more pronounced?
89 XJ with 4.0
I've been trying to track down a poor performance/mpg problem and can't figure it out. My idle is nowhere near solid, although it's always at a consistent 600-700 RPM's. What I mean by "not solid" is that the needle fluctates quickly by small increments, and you can hear the engine running rough. It idles this way cold and hot.
The other issue is that it always stalls out on the first stop. I thought I cured this when I fixed my high idle (injector o rings were leaking) but it's still there, maybe not as pronounced.
Also, I often hear of people praising the low end torque of the 4.0, but mine always seems to lag until around 1800 RPM's. Is that low? I have 235s, 3.07's and an AX15, and when I let the clutch out slowly, with some gas, it just seems like it wants to die and barely has enough power to get itself moving. Runs good at high RPM, though.
I'm going to check my plugs tomorrow, and the connectors at the firewall & ECM for corrosion. I have a 2 year old O2 sensor, a new tps, cleaned ford injectors, new & cleaned IAC, cleaned TB, new intake manifold gasket and a recently fixed exhaust manifold.
It just seems to be low on power, and running rich. It has a cat, but you can definitely smell that terrible umburnt gasoline smell at all times.
So yeah, does this sound like limp mode? Or is that more pronounced?
89 XJ with 4.0
