onefast2gdsm
15+ Year Contributor
- 866
- 6
- Aug 30, 2010
-
millersburg,
Pennsylvania
I wired a 2g blackbox ecu into my 1g, with speed density. I had the car atleast idling on speed density alone, it idled a little high and afr was a bit rich but it was a steady idle.
Tonight i wired in a 2g maf to tune on that to build the ve table, switched to the basic ceddy mods and unplugged my iat sensor. Left the injector settings the same. Tried to start the car and no start, getting too much fuel. I switched the tune back to the previous one where the car idled on speed density, disconnected the maf and plugged the iat sensor back in. The car still wont run.
If i unplug the injectors and start it, it runs until the fuel in the cylinders is gone. Plug the injectors back in and it starts and runs if i hold the throttle wide open but wont go over 500 rpm and its 10-11:1 afr. I let off the gas car dies and wont start back up.
The map sensor is wired into the mafs 5 volt reference, the ground for the maf, map and iat sensor are wired together, mdp sensor signal wire is going to the map per ceddys instructions. I feel like the problem may be a 5 volt power problem or a ground problem being sensors are tied in with one another but i dont know. Any help would be appreciated!
Tonight i wired in a 2g maf to tune on that to build the ve table, switched to the basic ceddy mods and unplugged my iat sensor. Left the injector settings the same. Tried to start the car and no start, getting too much fuel. I switched the tune back to the previous one where the car idled on speed density, disconnected the maf and plugged the iat sensor back in. The car still wont run.
If i unplug the injectors and start it, it runs until the fuel in the cylinders is gone. Plug the injectors back in and it starts and runs if i hold the throttle wide open but wont go over 500 rpm and its 10-11:1 afr. I let off the gas car dies and wont start back up.
The map sensor is wired into the mafs 5 volt reference, the ground for the maf, map and iat sensor are wired together, mdp sensor signal wire is going to the map per ceddys instructions. I feel like the problem may be a 5 volt power problem or a ground problem being sensors are tied in with one another but i dont know. Any help would be appreciated!
