It's an OEM system with an engineering pedigree that the aftermarket systems can't match. Unfortunately, because it's an OEM system it's mostly locked up, with little aftermarket tuning software support. That's a shame, because with some good software, these systems would be a great value. At this point, without a dongle, cable, and no progress in months, I agree it might be time to throw in the towel and go with a friendlier system.

Edit: if you do decide to throw it away, let me know.

Yeah -- It really isn't like me to just butt in to someone's thread and say something like that... but after seeing the dates -- and reading the questions and responses... that's the conclusion I came to. Dude... just spend a few more bucks and get 'er done.

Hey! This may be the first time you and I have AGREED!! A new beginning! <olive branch extended> HAHAHAHAHAHAHA

Its been months because its cold and miserable here and its been sitting untouched. Skiings gotten boring and i have a week to kill before im off to mexico so i figure id mess around with it. I plan to put a fast on it but i do want to sell this mefi set up and would like the buyer to have a working system at least

Miserable NorthWET is an understatement!!

Hey -- I have a buddy that switched from FAST XFI over the FAST EZ EFI... I could see if he's willing to sell his XFI set up?

Accepted. Hedgehogs and foxes, Greg, hedgehogs and foxes. :)

Back to the OP, the data seems clear. The OP can't see his tune, can't change his tune, and it must be driving him crazy. I once had an old Holley Commander 950 setup that would start and run about every 20 attempts. I got nowhere for weeks. I pulled it out of the car and put in a FAST XFI system and had a running car in a couple of days.

It's time to cut bait on the MEFI, I'd say.

Trust me i cant wait to get the mefi out either, but it does worry me with those codes that there could be an issue that might pop up with the fast, related to the cam/crank sensor or coil packs

Waiting to hear back from turn key, but interesting issue, the car has a real hard start issue that occurs. Turn key said to unplug the cam position sensor, i did that and the car fires up easily each time now, its also driving way smoother, still wont rev over 2k though, i followed the diagnostic procedure to test the cam sensor wiring and everything as far as resistance and voltage and continuity was fine until th last step which was to turn the motor by hand to confirm the voltage goes from 0-7volts. I wasnt getting any voltage from the sensor. Waiting to hear back from turn key on how to proceed. It could be a bad cam sensor, i hope the correct cam sensor trigger timing set is on the motor.:confused59: , kind of glad i went this route or i would be really pissed if i slapped a new fuel injection set up on and had the same issue.

Is there any reason for you not to have a dongle, cable, and tuning software? Have you asked TurnKey about that?

We could probably help if you had those tools. Maybe you posted that in the thread before, if so, sorry to bring it up again.

They were asked about it before but said i had to buy my own, its only a 22k package i cant expect them to throw in a free cable and a means to tune it. Lol. I will probably end up buying the mefi burn because when i go to sell the set up someone will need it anyways. I bought a codemate and it gave me a code 41 and 81, but since its just a mil flasher i dont know what code 81 it is, from my understanding it could be a few different code 81s. When i told turn key about those 2 codes is when they asked me to unplug the cam sensor and see how it ran

My last experience with a MEFI (4b) was also with a TurnKey system. I was having a lot of problems with idle, and couldn't get a consistent IAC response. The problem was that the MEFI wasn't able to recognize when the throttle body was at idle, and so it didn't engage the IAC.

Finally, I reached out to the guy behind MEFIBurn (aka OBD Diagnostics), and managed to convince him to look at the tune. I sent the binary file to him, and he fixed the throttle body settings (there are many) and sent it back to me. His comment was that he was surprised the car ran at all. I had to hack the Ingenius tuning software to allow me to download his tune, but managed to do that, plus get Ingenius to think the tune originated with it so that I could make further changes.

And then the MEFI worked great. All my problems were rooted in the bad throttle body tables -- which are not visible in Ingenius.

Anyway, the point of the story is that MEFIBurn can probably help. And maybe MEFIBurn with a mail order tune will get you going.