car wont stay on , was running fine

alexsracing · Post by **alexsracing** » Sat Oct 13, 2007 12:09 pm

Im on hondata s300, was driving the car for 2 days , then it stated just reading from the 0 column while datalogging and would turn off from being rich.
I have tryed a motorola map, then an aem 3.5map, and even tryed to turn it on with a oem map sensor, all the same outcome.
I have also tryed switching to my old uberdata ecu and the same.

with a volt meter I get 5.00v from the power to map using the map ground for ground, and the signal read at the ecu with key on is 1.67v from the aem 3.5

what could be wrong???

there is fuel and spark and all of that.

and if I try to keep it on by just holding the gas pedal floored it is bearly on and threw a tps code, that it never threw before
Ill get tps readings right now

alexsracing · Post by **alexsracing** » Sat Oct 13, 2007 12:22 pm

my tps reading closed is 1.10v and fully open is 4.98v but was running fine for 2 days

alexsracing · Post by **alexsracing** » Sat Oct 13, 2007 4:55 pm

oem map with key front engine off is 0.12V

Post by **Spunkster** » Mon Oct 15, 2007 9:42 am

Sounds like a wiring or sensor problem. Double check everything especially grounds.

crucian · Post by **crucian** » Thu Oct 18, 2007 11:00 am

Recheck your wiring at the TPS or any splicing you did having to deal with the TPS. There is always that one wirer that lookes connected but actually not making any contact.