DFI and ECMDiscuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.
Welcome to ThirdGen.org!
Welcome to ThirdGen.org.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!
I am doing research for the MPFI conversion using my 7427 PCM. If I use the 96 vortec CPI injector what mods are needed to the PCM to drive that injector?
__________________ Dan - ASE certified-A1, A4, A5, A8 This is for all things four wheeled and fast...
95 S10 ecsb-350ci, Ported 906 vortec's, L31 intake, 9.5:1, Crane(.484/.512 216/228 112LSA), Hooker Super comps, 2.5" ORY, E-cutout, 40 series flow, 4L60E, 8.8 f*rd posi w/ 3.73's, 7427 PCM, MPFI mode, $OD, WB02. - Daily Driven!
Depends upon the resistance of the injectors as to whether anything or what needs to be done. If using saturated injectors just run jumpers across the sense resistors.
Is the jumper mod needed to run the CPI injector from the vortec intake or not? How would I do that? I'm not dead set on using it but I picked it up complete for $15 so I couldnt pass it up, plus I didnt even have to pull it!
Is there a true PFI OEM intake setup for vortec heads or only CPI?
__________________ Dan - ASE certified-A1, A4, A5, A8 This is for all things four wheeled and fast...
95 S10 ecsb-350ci, Ported 906 vortec's, L31 intake, 9.5:1, Crane(.484/.512 216/228 112LSA), Hooker Super comps, 2.5" ORY, E-cutout, 40 series flow, 4L60E, 8.8 f*rd posi w/ 3.73's, 7427 PCM, MPFI mode, $OD, WB02. - Daily Driven!
Is the jumper mod needed to run the CPI injector from the vortec intake or not? How would I do that? I'm not dead set on using it but I picked it up complete for $15 so I couldnt pass it up, plus I didnt even have to pull it!
Is there a true PFI OEM intake setup for vortec heads or only CPI?
Hi Drummer, GM Performance Parts Ramjet intake. Fits vortec style small block heads. Picked up the intake on ebay, tuning it with the EBL, and I LOVE it. Dean.