![]() When mixing and matching induction and fuel parts on a port fuel injected computer controlled engine, a tune is a necessity or else it's going to either barely run or have severe issues trying to climb thru the RPMs with totally incorrect air/fuel, timing, injector pulse, etc issues. The other better option imo is to use an F150/250/350 351W manual PCM with the twin TB but you'll need a tune/chip/piggyback programmer anyway since even the 351W computer is expecting to see a twin 50mm and not a twin 56mm. It's still not ideal but it will probably at least run and idle without a tune, I think. You may have heard of problems getting them to start, idle, and run like a 1987 - 1993 5.0 after doing some modifications. The end result was a much cleaner, smoother running car. Like Krem12 said my suggestion is also to ditch the twin TB if trying to use the 1993 Cobra PCM and just get a 65mm. In 1994 Ford did a redesign of both the EEC hardware and EEC software. If it does I'm almost positive that there'll be a very clear dead zone for power off idle until the mid to upper RPMs are reached and even then nothing will be metered anywhere near correctly. It'd be interesting to see if it idles at all. It's expecting to see a 65mm TB and instead is getting a twin 56mm. Firing order for all MAF computers is the 5.0HO/5.8 order, and all MAF computers use sequential injection. The stock Cobra computer isn't going to be able to adjust anywhere near as much as it would need to with the factory program that's on it. You can use any E4OD/truck MAF computer however, 5.0 or 5.8, thats the beauty of having a device that measures intake air in real time, the computer can adjust to the requirements. Click to expand.Agreed with Krem12 about a tune being absolutely necessary in this situation. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |