OK i've searched and i've read but i really don't have time to read every result. I've found that to fix the hesitation i should ground the rear rotor housing ground with a new wire and clean connections. but what about a ground at the ecu is this a good idea or possible? Could i just ground the same wire that i used for a ground on my safc? I was thinking just tapping into that ground wire on the ecu and grounding it to something near by. I will also be grounding other places like the coils.

 

i had the same problem, i adjusted the voltage on the tps, problem solved. Look for a thread or ask someone how to do this, as i am not good at explaining stuff. You will ned a volt meter

 

i know how to adjust my tps and it is adjusted correctly and is not the problem, what i am refering to regards grounding

 

BUMP
Someone please post something I'm trying to fix this problem today

 

I grounded mine from the top tranny bolt (one that connects to the back of the engine) to the grounding pin next to the passenger wiper motor. It's on the top side of the firewall.

 

Yes they recommend to ground
-Engine housing/EFI harness to firewall
-Tranny to firewall
-Boost sensor
-ECU

Coils and a huge battery terminal ground are a plus and some what easy to do.

 

I fixed the 3800 rpm stumble on both na and T2 cars by haveing the injectors cleaned.
Justa suggestion.

 

yeah i'd like to have mine cleaned although i don't think thats what is causeing my hesitation but i don't have the cash for that right now. College kid + job that closses from nov till jan + RX7 = a very poor kid lol

 

grounding the boost sensor and the ecu worked for me, along with adding another battery to chassis ground.

 

ok my main question is tho exactly where do i run a wire to and from, like where do i connect each end of the wire to ground the ECU i suppose the ground side can be any good ground but where do i connect to the ecu?

 

Just find one fo the pin outs for the main ground/s and just splice in BUT make sure you do a good job. Crimping is not a sure way. Make sure you solder that bad boy in.