Thanks CJ I will check next week with the shop here.

 

Well my local dealer said no on the part #. No suprise to me they are the same ones that said the cps is still $190.00. Oh well I will keep trying some place else.

 

hi i was just wondering if the compuer could be causing these problems?? some times the truck runs fine...and some times it has no power at all and still wont go past like 2,000 rpms... i just got a new superduty idm and still the truck doenst run right...ive took my truck to ford when the problem first started and they couldnt find what was wrong with it...soo ive replaced almost everything...im guna part out my own electric fuel conversion in a lil bit but i was just wondering if this could be a bad computer??? thanks alot guys!!!

 

Have you checked the UVC harness (Under Valve cover). There are 2 connectors on each V-cover. Look for corrosion, burnt, bent pins/sockets.

Remove the valve covers to check the connections under there too.

It seems that the trouble you are having should be throwing a code?

 

hey cuda jim thanks for the help... yah ive replaced all my uvc harnesses and my gasket also, with brand new ones while i did my injector change...well todai ive took out my chip to see if it will run fine... it runs alright... when it was surging it seemed like the chip was going in and out... and some times when i gass it there would be no smoke... like as iff i had no chip...soo i thought maybe my chip was loose but it was tight all the way in there and clean connections... do these computers ever go out?? or has anybody ever had there computer go out on them??well thanks alot guys!!!!

 

Don't know about the computers but mine acts the same way except at 3K rpm. I went with the electric pump thinking it was starving for fuel but it still acts the same.

 

I recently had the same problem. I disconnected the EBPV exhaust back pressure valve which helped tremendously. It didn't cost anything and is easy to rule out.

 

hey guys i found a code on my computer.. its po603....internal control module keep alive memory Kam error..??

 

My intermittent problem did not go a way with a cps change and ebpv disconnect. I have no codes and was wondering if you got your problem resolved

 

That code is normal for a truck with a chip. Normally a PCM is a go no go item. They either work or they don't. Its worth a shot if you can find somebody who you could swap PCM's with. Also did you say you drove the truck with out the chip installed? Did it make any difference?

 

Try running in cruise if you have it, Run the speed up & down, & see if the problem goes away..If you need a TPS they are available herehttp://http://www.dormanproducts.com...s_Sensors2.pdf

If there is a problem with the TPS , & the PCM doesn't get a signal, It automatically returns to idle untill the PCM gets more info.... ...

 

Just an update, I changed my CPS with the 'new & improved one'. I ran it up to 3400 rpm and it was smooth as silk!!

 

thats great to hear. If that changes let us know! stupid cam sensors!

 

hey TJ thanks again for yur help... weLL i finally found the problem...when i took out my banks chip and put in my old evolution the truck ran fine!!!.. then i cleaned up the area where the plug in chip goes...and took out the evolution and installed the banks chip back in and the truck runs fine now!!!!! i thought i checked that earlier but i guess not.... wow that was alot of trouble for a simple thing... well thanks again guys!!!! and i was also wondering... i tink my fuel pump might be going bad again with my new injectors.. because when i first installed my stage 1's the truck used to move more and slip the clutch.. but now when i pound it the truck doesnt slip the clutch or anything anymore??? well i have half of my electric fuel pump things in.. but kinda laying off for a lil while because my truck runs fine for now....well anyhows thanks again guys for all yur help!!!

 

I am battling the same type of problem. I did find that the idle validation switch on the gas pedal was dirty, would stick, and when it does the engine will instantly go to idle. However, I am still trying to find the correct TPS to replace my old one. May have to buy the whole pedal assembly but I am refusing to part with that much money.