| FiTech issues [message #370112] |
Sun, 10 July 2022 11:39  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
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Senior Member |
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This is FYI info in case anyone runs into the same that I experienced. I've been having serious issues with my FiTech. On our trip to Florida this past winter, the FiTech began experiencing 10.4 AFR's, rarely running on command. No matter what I did to AFR's, it ran way too rich. Sometimes it would run into the 13's, so I drove it home some 1500miles stopping for fuel way more often that I wanted to. Also noticed a flicker in the tach needle, and occasional hand held tach responses of high rpm. Like just a flicker of say 4578rpm or 3659rpm....random high numbers. After spending time with FiTech support and changing out the O2 sensor and Fuel Pressure regulator to no avail, the FiTech finally started Coding a "code 35". This started gradually, only seeing flickers on tach and coding 35. Then constant flickering and coding 35. Code 35 is a "ignition noise" issue. FiTech support said it was electronic noise coming from the Petronix 1181LS that I installed to replace the points. Talked to Petronix and they sent me a filter that was suppose to eliminate the noise. It is a free upgrade. Installed it with no change. Finally I pulled the distributor cap with wires and found rotor center contact to be quite worn, and two spark plug wires that were out of sync (ohms) with the other 6. I replace the wires and rotor. Still a code 35. (ignition noise) The only thing left was the coil. I had purchased the coil as a matching coil to be used with the Petronix 1181LS. It is their 1.5ohm "Flame-Thrower" Petronix coil. I took the coil out and replaced it with an old 12v Delco coil that I've had laying around for many years. Code 35 gone, and runs perfect going to AFR's commanded. This Petronix coil has been going bad over the last 5 months...a little at a time creating noise that was F'ing with the CPU programming. Hope this helps someone.
I posted this to the FiTech forum on Facebook also.
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
[Updated on: Sun, 10 July 2022 13:20] Report message to a moderator |
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