1998 Ranger PWM/FEPS ecu tuning

[jsa]

Two examples of solder jumpers for J3 tuning as per these links;
http://eectuning.org/forums/viewtopic.p ... c9#p135923

http://eectuning.org/forums/viewtopic.p ... c9#p135978

[55trucker]

And the J1850 PWM PCMs are programmable usually. There were just certain ranger PCMs that were not. You could find someone with a good cable and have them try to reflash the pcm. Or maybe the dealership. Like I said…you have to have the correct cable and software and attempt to program it, if it will not program then it will need to be replaced. The new one looks and operates the same, it is just programmable. It may have been as simple as a couple jumpers or resistors that were just not installed on the older PCMs to allow for tuning. Or it could have been the type of eprom used in the older PCMs.

If you personally know a source for a rebuilt piece that wouldn't be *locked* I'm all ears. The few rebuilder/dealers I've contacted all state that what I will supplied with will be programmed to my trucks VIN, the pcm will be identical to what I have & NOT programmable.

[BOOSTEDEVERYTHING]

[quote If you personally know a source for a rebuilt piece that wouldn't be *locked* I'm all ears. The few rebuilder/dealers I've contacted all state that what I will supplied with will be programmed to my trucks VIN, the pcm will be identical to what I have & NOT programmable.
[/quote]

I very highly doubt the new one you get would not be programmable. They have to program it to your vehicle after all. I think you may be misunderstanding the identical to your pcm part. At any rate, I would take the truck to a dealership and see if they can reprogram it first. If they can then you should be able to.