ca18det rev limitor

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Sun May 20, 2012 8:00 pm

does anyone have a clue why my motors rev limitor kicks in way to early? it limits it at around 5500 6000rpm

rat · Post by **rat** » Mon May 21, 2012 10:32 am

Stock ecu?

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Mon May 21, 2012 11:54 am

Enzio · Post by **Enzio** » Mon May 21, 2012 12:17 pm

With the amount of info available I'm going to guess boost cut.

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Mon May 21, 2012 12:32 pm

sorry

its a ca18det standard ecu motor just been re done timing has not been done yet just adjusted by the sound. what is boost cut

Enzio · Post by **Enzio** » Mon May 21, 2012 12:39 pm

1) Set your timing properly before you nuke your rebuilt motor.
2) Do you have the stock T25? running stock boost? I'm guessing not.
Boost cut: When your MAF maxes out the ECU cuts fuel to prevent the over-boost as your fuel system cannot support that much air into the motor.

PS: You say it's the rev limiter, but it could also be that your cam timing is out one tooth and the motor simply cannot increase rpm - this is a common mistake when working on CA's.

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Mon May 21, 2012 12:46 pm

kwl thanks alot for the help [smilie=200sx_200sx.gif]

NIZAN-R · Post by **NIZAN-R** » Mon May 21, 2012 12:53 pm

also check if feul lines to rail is not wrong way around

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Mon May 21, 2012 1:26 pm

Kwl will do but i got a feeling im a tooth out on my timing. When i set the timing with a timing light it must match up with the second ridge right?

NIZAN-R · Post by **NIZAN-R** » Mon May 21, 2012 2:03 pm

yes second mark

SonOfAnarchy ZA · Post by **SonOfAnarchy ZA** » Mon May 21, 2012 2:33 pm

I checked and mine is way out and adjusting the cas still doesn't bring it to the second mark it must be a tooth out

*Nissan 200SX Club - South Africa