Anyone having Fuel Shutoff Problems @ Highway Speed

[MSorian]

It was intermittent during the winter months contributed most of the problem due to the cold winter and possibly the fuel was gelling overnight.



Now I am having almost the same type of problem in the heat. At highway speed the fuel would just cut off, leaving the truck dead and coasting. Most of the time I was able to bump start it at 60+ MPH (Not too much fun!) and keep driving, but sometimes it wouldnt turn back over and I'd coast to the shoulder. It threw a fuel delivery malfunction code and a camshaft position sensor A code. I dont have the time to start investigating the issue today but I was seeing if others are having this same problem.

 

[rbattelle]

Could it possibly be a loose electrical connection that's arcing intermittently? Did you try unplugging everything (especially the EZ), then plugging it back in? Have you experienced the problem without the EZ installed?



-Ryan

 

[MSorian]

I actually have the TST Powermax CR box. The original program before the detuned programs came out.



I have 35k on the truck now and had the TST on since 500 miles. Havent seen a problem until now.

 

[rbattelle]

I actually have the TST Powermax CR box. The original program before the detuned programs came out.



I have 35k on the truck now and had the TST on since 500 miles. Havent seen a problem until now.

Why the heck did I think you said EZ? I must be getting too old for this.



Anyway, I still point the finger at an electrical problem. Could be the fuel control actuator on the back side of the CP-3. Or, as I mentioned, could be an electrical connector with some corrosion in it. I'd start by unplugging things and cleaning them with acetone (if it doesn't attack the plastic the connectors are made from).



-Ryan