A little help probs on convers,, may need to post in another section
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 70
Likes: 0
From: Phoenix
HELP !! probs on conversion ,, (SOLVED!!!)Motor will not accelerate,,lookin for input I have completed my conversion on my Caprice with a 6.0 with LS6 manifold and TR224 cam, comp 918springs, Pacesetter headers. 7.4 pushrods, custom programing completed, converted from a ETC to manual throttle body, 80mm,Maf still has screen, wiring is a conversion from the donar vehicle, exhaust GHL 2.5 dual no x-over at moment.
Have a really strange problem that I can not identify. Begging for help!!!
Car starts up idles great, no problems, sounds good!!
attempts to Rev motor the motor will not accelerate past 1300rpms. This is not a attempt to drive this is just a motor ideling and rev on the throttle.
What I have checked so far:
No codes posted,,(can force a code)
Fuel pressure 60 static, 59 at idle, 59 when attempting to rev.
Double / triple checked all wiring and connections,, metered all (checked with ohm meter to ensure no impedence)and checked them back to PCM.. All looks good
No manifold leaks, intake or exhaust,
New spark plug wires - plugs,,
Pulled motor apart check cam for walking and correct alignment and all OK.
have NOT replaced Crank pos, cam position,
New throttle pos.sens.
new IAC
With the car at this point its like getting a lap dance "TEASE" LOL
Any thoughts / suggestions are welcome,, Thanks Roger,,
Have a really strange problem that I can not identify. Begging for help!!!
Car starts up idles great, no problems, sounds good!!
attempts to Rev motor the motor will not accelerate past 1300rpms. This is not a attempt to drive this is just a motor ideling and rev on the throttle.
What I have checked so far:
No codes posted,,(can force a code)
Fuel pressure 60 static, 59 at idle, 59 when attempting to rev.
Double / triple checked all wiring and connections,, metered all (checked with ohm meter to ensure no impedence)and checked them back to PCM.. All looks good
No manifold leaks, intake or exhaust,
New spark plug wires - plugs,,
Pulled motor apart check cam for walking and correct alignment and all OK.
have NOT replaced Crank pos, cam position,
New throttle pos.sens.
new IAC
With the car at this point its like getting a lap dance "TEASE" LOL
Any thoughts / suggestions are welcome,, Thanks Roger,,
Last edited by tooblue; Nov 4, 2005 at 01:09 AM. Reason: title
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 70
Likes: 0
From: Phoenix
Well I went out to do more checking / monitoring. Used a Auto Xray and seeing some strange things that may be point to possible bad PCM or programing????
Throttle position on autoxray never moves off of 0% ???
I back probe the signal going into the PCM from the TPS and the Value changes from .45 volts to 4.6 volts.. Though Auto Xray tells me that the PCM is not recognizing the input from the TPS??
Timing advance at idle = 28 degrees.
When attempting to accelerate throttle it immediatly goes to 0 to 7 degrees. Motor will only RPM to about 1300?
any thoughts recomendations????
Throttle position on autoxray never moves off of 0% ???
I back probe the signal going into the PCM from the TPS and the Value changes from .45 volts to 4.6 volts.. Though Auto Xray tells me that the PCM is not recognizing the input from the TPS??
Timing advance at idle = 28 degrees.
When attempting to accelerate throttle it immediatly goes to 0 to 7 degrees. Motor will only RPM to about 1300?
any thoughts recomendations????
Thread Starter
Staging Lane
Joined: Aug 2004
Posts: 70
Likes: 0
From: Phoenix
IT LIVES Finally Bad PCM was the problem!!!!!... The symptoms were really strange as mentioned above. It runs and runs very well. Got to take this thing out and drive it finally!!!!. Still have to put the gears and posi in that have been sitting on the shelf and I should be good to go. Took it out on the back street from the house and flashed the throttle a few times..
Got home and the wife had the back door open letting the cool air in and she says "whats that burning rubber smell" I told her is was called PROGRESS.... LOL Roger,,
Got home and the wife had the back door open letting the cool air in and she says "whats that burning rubber smell" I told her is was called PROGRESS.... LOL Roger,,
Last edited by tooblue; Nov 4, 2005 at 07:24 AM.
TECH Resident
Joined: Dec 2004
Posts: 841
Likes: 0
From: Baltimore, MD.
Attaboy.....Way to stick with it....
Glad you've got it in & running properly. I'm also suprised that your wife knows exactly what burning rubber smells like. My wife couldn't tell that from hot antifreeze....
It's looking good. And a 6.0 with some parts ought to push that 2ton beast pretty well.
'JustDreamin'
Glad you've got it in & running properly. I'm also suprised that your wife knows exactly what burning rubber smells like. My wife couldn't tell that from hot antifreeze....
It's looking good. And a 6.0 with some parts ought to push that 2ton beast pretty well.
'JustDreamin'
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