high idle loping

[kotyr250]

lets start with it started loping ran ids and ran test and injector number 1 popped up. i replaced it and it stopped for a while and started back up ran test and it showed number 8 and 1 just replaced number 1. i know number 8 can throw off number one so ran test again and never showed back up been running test everyday for 2 weeks and nothing shows up injector pressure read 450 psi and no codes show up its been killing me trying to find out what is the problem anybodys input would be amazing and relieve so much stress.. i heard it can be so many things just need some help need to know where to begin and what to test and how thanks for your time

 

[golfer]

ids can't tell you anything about an injector, other than it is electrically plugged in (the inj buzz test)..

the cylinder contribution test, nor a CCT failure (#1 CCT balance fault)..is an 'injector' code...it simply means that that cylinder is not in balance with the others...could be an injector...could be valve train..compression, etc.

but..knowing that #1 cyl is farthest from that cylinder heads fuel feed line...I would suspect a fuel issue..quality, pressure, or other restriction in that head (if fuel pressure checks out testing at the fuel bowl).


here are some links to our FAQ's and other diagnostic procedures.

http://swampsdiesel.com/files/7.3LInjectorDiagnostic.pdf

http://swampsdiesel.com/site/faqs.html

 

[POWER-STRUCK]

what year, PCM and injector type?

 

[kotyr250]

im pretty sure found it out the icp had oil in so going bad i cleaned it and gonna see if it lopes again. if it does replacing it and try it again if it does not work will let yall know but thanks for the info