OK whats the lpop sorry i don't know that one.

 

low pressure oil pump

 

I had it scanned again the ICP drops under acceleration, what would cause that. Mechanic said check map sensor and line and could be a turbo issue.

 

ICP and the Map and different entities, If the ICP drops under WOP then you could have a bad IPR which controls your HPOP pressure and duty cycle.

 

IPR is brand new.

 

Have you tried unplugging the ICP?

 

Yes, I did this initially. The sensor is new. It had oil in the plug. New harnes also, I did one wire at a time not to cross them up.
I finally gave in and took it to the shop. I have no word yet what the problem is. I am still leaning towards hpop.

 

Yea, sorry, wish we could help more. Let us know what the results were.

 

OK got the truck back from the shop, he gave me the choice to work on what the main problem was, the fuel pump was junk. I had put the walbro on when this first started but I had the stiffer spring in the regulator and could have fried both pumps. I also have a main harness and injector harness issue to address also.

I did tje new airtex pump today, but I have not driven it much to load up on it. I hope this is the fix.

 

wow, well let us know how it turns out!

 

So far so good, I was hitting the hills and the roads that it used to act up on and its not duplicating the problem. I still need to address the harness issue, but its running so off to a good start.