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dcb · 05-12-2008, 08:33 PM

FYI, I moved my tap to the injector lead itself. What I thought should be an injector lead on the ecu wasn't panning out?!?

Also, I'm not convinced this input circuit is doing anything. I don't have an oscilloscope unfortunately, but I probed around with a piezo and could hear the injector signal with it connected to the injector lead, and also could hear it across the 100k resistor, but cannot hear any ticks getting to pins 2 or 3, with the other end of the piezo grounded, or hooked to positive. Will try again on the breadboard version. Might need more thinkin, I will probably try just a 100k and some zeners next.

So I'm at a loss to explain the first trips readings...

05-12-2008, 08:33 PM	#47 (permalink)
dcb needs more cowbell Join Date: Feb 2008 Location: ÿ Posts: 5,038 pimp mobile - '81 suzuki gs 250 t 90 day: 96.29 mpg (US) schnitzel - '01 Volkswagen Golf TDI 90 day: 53.56 mpg (US) Thanks: 158 Thanked 269 Times in 212 Posts	FYI, I moved my tap to the injector lead itself. What I thought should be an injector lead on the ecu wasn't panning out?!? Also, I'm not convinced this input circuit is doing anything. I don't have an oscilloscope unfortunately, but I probed around with a piezo and could hear the injector signal with it connected to the injector lead, and also could hear it across the 100k resistor, but cannot hear any ticks getting to pins 2 or 3, with the other end of the piezo grounded, or hooked to positive. Will try again on the breadboard version. Might need more thinkin, I will probably try just a 100k and some zeners next. So I'm at a loss to explain the first trips readings... __________________ WINDMILLS DO NOT WORK THAT WAY!!!