Quote:
Originally Posted by 169mph
I found and downloaded the latest (I think) FAST software for my ECU. I was to communicate with the ECU. My battery is too low start engine but with the key in the run position I was able to see if I had any faults, which I do not. Will the ECU detect faults without the engine running? At this point, I think I’m going to put in a new set of plugs, charge the battery, and try to find some one willing to remotely tune my engine or at minimum check the tune I have to see if something isn’t configured correctly. I was told there were only few people that would consider tuning my engine due to the FAST ecu. Is this correct? If not, do y’all recommend someone? Again, appreciate y’all’s feedback.
Thanks, Mike
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Hey Mike - I tried reaching out to you a few times. I can definitely help you out with the FAST software as well.
I know others have said the engine left ROUSH running correctly but I'm not sure they've had to replace as many FAST ECU's that have failed as I have.
There was a point where Jim at ROUSH wouldn't even question what was wrong and just send me a new ECU and harness. I've had multiple ECU's with failed injector drivers, some when the car gets up to operating temperature it'll just stall and not restart, some just refuse to communicate with a computer... Honestly I don't know why ROUSH went with FAST it's pretty bottom of the barrel EFI.
If you do plan on having either me or someone else remote in I highly suggest purchasing an seperate wideband gauge and putting it into the side-pipe. This is done to make sure the FAST O2 sensor isn't giving the ECU bad readings.
I wouldn't suggest megasquirt or any other diy type ecu for this application unless you truly like tinkering with it all the time. IMHO, Holley is the way to go. Ease of use, plug and play, pretty advanced self tuning, everyone and their mother can tune it, price it right, and I've not had a single issue with the 100's of Holley installs I've done in my years doing installs at Backdraft other than an O2 sensor fouling going bad.
Either way - if you're interested in having a conversation about anything on your car (even if it isn't EFI related) feel free to call me at (954) 464-5637
I've got over 16 years experience building kit cars and worked at backdraft for the last 8.
If anyone is west of Texas and looking for a good shop let me know I'm now living in Las Vegas and my shop will be open Jan 1st!
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