Jscott1, I take it your chip is looking for 26000 VSS siginal (correct me if I am wrong). If the Dakota Digital is taking in the 60000 and out putting 26000 to the PCM it should function correctly. This can be determined if your PCM is outputting the 4000 pulses to drive your speedometer and it reads correctly . The circuit after the PCM is just an amplifier to keep the speedometer from jumping around at low speeds.

Jack

quote Originally posted by J Gunsett: Jscott1, I take it your chip is looking for 26000 VSS siginal (correct me if I am wrong). If the Dakota Digital is taking in the 60000 and out putting 26000 to the PCM it should function correctly. This can be determined if your PCM is outputting the 4000 pulses to drive your speedometer and it reads correctly . The circuit after the PCM is just an amplifier to keep the speedometer from jumping around at low speeds. Jack

Yes I have it all hooked up just like that.

I have it accurate in the ECM as confirmed with the GPS. Problem is the speedo reads off by about 5 mph, (could be a bad speedo). But I have another calibration device I want to put in between the PCM and the speedo to fine tune the speedo separately.

The other problem is that the Dakota Digital has a tendency to spaz out from time to time and the speedo bounces like crazy. It eventually settles out and is more of a nuisance. I heard there was a fix for that but never got around to figuring it out.

Lastly, once I did all this I still couldn't control the ISC properly, but that's something for another thread.

jsoctt1, I did have a problem with the first Dakota Digital unit I had. I called them and they told me I was doing things wrong and we went back and forth, I told them I wanted to return the unit so they could check it out. About 2 weeks later I received the unit back with a note that nothing was wrong with the unit. But the unit they returned back to me was not the original unit I sent to them. Never had a problem after that. I also get a little sail on problem once in a while, but like you say that is another problem. Hope you get it fixed.

Jack