PAUL54 Posted March 2, 2015 Share Posted March 2, 2015 This might be a repete so if anyone could stir me in the right direction I'd appriciate it. I'm in the processes of accomplishing all of the recomended fixes of the renix system but I have a problem that perplexes. Mine is an 88 4.0. It has a cps moved to the front. It starts and runs fair in open loop going thru the RPMs smoothly. When she warms up and falls into closed loop she stumbles at around 2300 RPM. Gassing it above aprox 2500 clears it and runs WOT OK. The TPS has been changed. It only does this in closed loop. Any suggestions? Link to comment Share on other sites More sharing options...
cruiser54 Posted March 2, 2015 Share Posted March 2, 2015 How are you determining open and closed loop? Sounds funky with a CPS on front. Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 2, 2015 Share Posted March 2, 2015 Pics would be nice Link to comment Share on other sites More sharing options...
cruiser54 Posted March 2, 2015 Share Posted March 2, 2015 Pics would be nice Really nice. Link to comment Share on other sites More sharing options...
PAUL54 Posted March 3, 2015 Author Share Posted March 3, 2015 I'm using engine temp as an aproximate indication of open and closed loop. The CPS is a Hesco product that changes the dampner and has a bracket for the CPS which mounts on the timing cover. Sorry I don't have pics right now. Link to comment Share on other sites More sharing options...
cruiser54 Posted March 3, 2015 Share Posted March 3, 2015 I'm using engine temp as an aproximate indication of open and closed loop. The CPS is a Hesco product that changes the dampner and has a bracket for the CPS which mounts on the timing cover. Sorry I don't have pics right now. Renix goes into closed loop in a minute or less and is not engine temp dependent. Link to comment Share on other sites More sharing options...
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