RWD_DC2

I HAVE A EJ1 WITH A GSR SWAP AND I HAVE TRIED 4 OF MY FRIENDS ECU's ALL OBD1 P72. THEY ALL HAVE THE SAME OUTCOME MY CAR WON'T GO PAST 7200 RPM. IDK WAT TO DO THE ECU's WORK FINE IN MY FRIENDS CARS AND WHEN THE MOTOR WAS IN MY FRIENDS HATCH IT WAS FINE. IF THIS HAS HAPLESS TO ANYONE ELSE PLEASE RESPOND ASAP THANK YOU!

HondaPartsHero

Is your check engine light on?

RWD_DC2

NOPE NO CEL

HondaPartsHero

Usually when the engine will not rev past 7200 its due to being in limp mode usually caused by a check engine light on.

RWD_DC2

IT WAS IN LIMP MODE WHEN I FIRST DID THE SWAP. CAUSE WE BROKE THE KNOCK SENSOR BUT WHEN THAT HAPPENS IT WOULDN'T GO PAST 4000 RPM. BUT I FIXED THAT AND I HAVE NO CODES NOR DO THE ECU'S HAVE ANY STORED CODES. LOL IT'S MIND BOGGLING

apexi_rsx

maybe try swapping the dizzy it controls alot of how the motor responds and revlimiter

RWD_DC2

HMM HAVEN'T TRIED THAT YET I'LL DO THAT ASAP

Wrona

Stop posting in caps its annoying and actually not accepted on this forum... its obnoxious and seems like you are yelling

Kohen

ARE YOU SURE YOUR CHECK ENGINE LIGHT WORKS?

if you need help disabling the caps lock button let me know.

RWD_DC2

My bad lol I'm not yelling. Yea I'm positive its working cause it threw the code for the knock sensor.

And I don't think its the dizzy cause it still has the same one that was in my friends hatch

gwarfare

What ecu are u running obd1,2 are the vtec wires connected correctly to match the ecu. Obd1,2 are two different wire setups.

RWD_DC2

Obd1 ecu and motor. It's a civic ex so its already wired for vtec

Jdubbs6101

You sure your tach is ok.....not too sure just a thought though

Wrona

Using a obd2 to obd1 coversion harness?

RWD_DC2

Tach is fine cause it still goes up to 7200 with the p28 :/

Naw no jumper harness its a 94 civic

koumatae

i know this is an old thread but i have the same issue also. Did you ever find the problem?