Stein

iTrader: (46)

Well, figured out my problem getting the ECU to run. I had a 12V feed into the MAP sensor instead of 5V and it was hosing up my values. What is a convenient place to tap for 5V feed? IAT is 3V so I can't use that.

patsmx5

iTrader: (16)

The TPS sensor should get a +5V reference source. Not sure which wire it is, but you could look up the wiring diagrams posted on this forum and find out. One is signal, one ground, the other +5V.

cjernigan

iTrader: (13)

That sucks that the map sensor takes 5v instead of 12v. Very inconvenient. I don't know of any other 5v sources, I always thought the IAT sensor uses 5v but apparently not. Are you sure 3v isn't enough?
Maybe you can make a reduction circuit similar to a cigarette lighter charger for a cellphone or something. I know a few people that have taken the cig lighter chargers apart to get the small circuit out of them in order to power their small LCD panel wideband gauge.

18psi

iTrader: (76)

damn. all this time you thought it was a fueling issue too.

Stein

iTrader: (46)

Just checked. TPS is 5V. I'm using that.

Thanks Pat.

Damn, I went from no internet at home to internet on the laptop in the shop. Welcome me to the 90's.