Join Date: Jan 2017
Location: Northeast Pennsylvania
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Fitech fuel injection setup/ issues?
I bought my wife a '67 LeMans convertible. The poor original OHC6 puked & burnt more oil than I could keep in. 2 months after buying the car, it now has a new XU 1967 400 motor w/ 061 heads. Everything stock with exception to the Melling SPC-7 cam & Comp Cam Roller tip rockers. The car ran decent with a new Edelbrock 600 carb but it needed more, even after changing things around with a new calibration kit.
That's when I decided to give a Fitech 600 a try with the rear mounted electric pump. With the wife driving it, I figured the fuel injection would be maintenance-free, no-carb-problem upgrade.
My first impression was the AMAZING throttle response it had, not to mention it burned efficient (no heavy exhaust smell). I decided to run down and fill the tank for a test drive. As I'm pumping fuel, a crowd congregates around checking the car out. After some chit chat, I hop in and attempt to start the car. It tries...and tries...and tries.... I make some adjustments on the hand held controller...nothing. Long story short: I sat at least 30 minutes before the car would start and sadly this would continue ALL summer long. Many hours on hold with FiTech and no real resolution. The car will start but it takes at least 3 attempts and you have to feather the gas to do it (kinda defeats the purpose of fuel injection). Quite embarrassing when you're at a car show or have a crowd gathering around at a gas station.
I've reprogrammed at least 6 times, made hundreds of adjustments (as advised by FiTech), added more grounding straps, wrapped the system wires in 3M shielding tape (to prevent any possible electrical interference issues), checked/rechecked/double rechecked timing (all good), checked vacuum (a bit low at round 7-8 at idle) but I've never owned a Pontiac with high vacuum before (my '65 runs @ about 6-8 on idle). I'm at wits end!
Anyone else make the plunge with the FiTech system and have had success/ problems/ issues?