I have been working on tuning my IH Scout with an OBDI setup. I had a cheapy VSS and decided to up grade so I bought a Stewart Warner to match the SW speedo I found on ebay for $50, I picked up the divider so I could use that in conjunction with the ECM. FIgure this way I can have a functioning speedo, reliable data for the tuning and I am going to be eating my cake too! At the same time I rigged up a fuel pressure gauge to verify fuel pressure. That cheap POS pressure tester from HF was just that, a POS, I had everything tightened up and hit the key, yup fuel everywhere the T setup that came with it would not stop leaking WOW. So I "engineered" a more suitable T and fixed that issue.
For the VSS, I actually read the directions this time and it was suggested that you should wire it up before you connect it. As time is winding down I go to leave and forgot to hook the damn thing up. As I am hooking it up the "tang" that came with the VSS did not fit in the notch in the transfer case so now I am late and have to leave so I took it to the grinder and "engineered" it to fit...well imagine that the VSS does not work. Any suggestions on where to look first with the VSS? There is no way the tang is balanced, pretty sure it is out of round but do not know how sensitive the sensor is with that. Will I need the VSS before I start burning chips?
Then I am heading back and see that I am running 12lbs of fuel pressure, I stop several time and get it up to 14 lbs but when I hammer down it drops about a quarter to half a pound, do I need to worry about the pressure drop? Is 14lbs suitable or should I drop it back towards 13? Or does that even matter?
Does anyone else have these issues or should I heed the signs and just flush my head in the toilet
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