PDA

View Full Version : rb25 problem


401imports
05-16-2012, 08:15 PM
Ok I have a s2 motor in my s13 with a ws harness in it. Now I have been having some broblems with mafs but finaly think I got the right one. its a e60 from a maxima. Yellow lable on it. now when i try to set the cas timing to 15deg. It runs like crap but it runs fine at 20deg. It's supposed to be at 15 tho. So it runs fine and idols fine but when i get on the gas all the way... It pulls strong till about 5000rpms. Then I loose alot of power. The tons sound like they keep cloning and my boost holds but the power just isnt there... I have a walbro 255 with a fmic and 3 inch exhaust. Stock ecu. Anybody know wht the problem could be? My timing is also right (belt timing). I am stumped... Please help

ch1873857
05-16-2012, 08:21 PM
happened to me when my timing was off. and my plug gap wasnt right. the e60 maf for s2 i thought had a pink label..

401imports
05-17-2012, 07:27 AM
Yea its supposed to be pink but my maf from the stock rb was bad so my friend had a extra vq30 motor and gaveme the maf. It says e60 and its yellow. The one that was bad is pink.

401imports
05-17-2012, 07:30 AM
My friend had a vq30 motor laying around so he gave me the maf. It says e60 and its yellow. The one I had when it was running bad was a e60 but it was pink. It's the stock rb one. When u sqy Ur timing was off, u mean belt timing or cas?

401imports
05-17-2012, 07:31 AM
And what's the plug gap supposed to be? Thanks

ch1873857
05-17-2012, 09:48 AM
CAS timing. theres a very particular way to adjust it correctly make sure you search for the fsm.

plug gap is supposed to be .8mm. standard plug from the parts store are 1.1mm

401imports
05-17-2012, 10:09 AM
The GSM said 15degree. 4th notch on the crank pulley. When I set it to that it doesn't run right