Troubleshooting Help/Suggestions

NyCowboy87 · Aug 8, 2011

Hotrodtractor said:
It was every time we railed on it. It was very noticeable and very repeatable. Is yours the same way?

Nope not at all, seems completely at random.

TARM · Aug 8, 2011

I have seen ICP sensors cause wildly erratic issues but not personally on my vehicles.

pontiacross · Aug 8, 2011

NyCowboy87 said:
Nope not at all, seems completely at random.

I worked on a truck one time that was doing that sort of thing. I fought it for quite a while untile I figured out the fuel pump was going out of it. everyonce in a while the fuel pressure would drop to nothing under a hard pull and since there wasn't much fuel in the injectors it was using a lot more oil to take up the void and would set low icp codes. probabaly wouldn't have that issue with dual hpops but just a thought

NyCowboy87 · Aug 9, 2011

pontiacross said:
I worked on a truck one time that was doing that sort of thing. I fought it for quite a while untile I figured out the fuel pump was going out of it. everyonce in a while the fuel pressure would drop to nothing under a hard pull and since there wasn't much fuel in the injectors it was using a lot more oil to take up the void and would set low icp codes. probabaly wouldn't have that issue with dual hpops but just a thought

I have thought about that too and watched fuel pressure, stays right at 65psi.

Hotrodtractor · Aug 9, 2011

NyCowboy87 said:
I have thought about that too and watched fuel pressure, stays right at 65psi.

Its time to hook up a LPO and a HPO mechanical gauges and watch what they are doing.

NyCowboy87 · Aug 9, 2011

I have a mechanical LPO gauge on it and that reads good, even put it in the top of the hpop res. just to check. I have to get a couple fittings and hook up my HPO gauge and see what that reads.