i got a type r and recently i just replaced the spark plugs n distributor rotor.. i have a p28 chipped ecu thats been in the car and is programed to crack vtec at 5 n redlines at 8800... the problem is that its not hittin vtec at those rpms.. its hittin at stock rpms.. could the ecu just have gone bad?? what could i check or troubleshoot to solve this problem?

today i un-hooked the battery while i was on a break at school for 15 mins no differance..

 

Is the j1 jumper on the ecu cut?

 

im not sure... is it inside the car where the ecu is?? i dont know much bout this stuff w/ the ecu.. tom im goin to a friends hosue and he knows alot more then i do and were gonna try and figure it out..soo thats why i made the post.. soo we have an idea on wat to look for..

 

is there anythig i can check like ecu or any harness??

 

You got a Type R with a P28...??


Stock RPM's are redline at 8900 and VTEC should engague at 5500 or so.

 

your tach is probably off by more than 300 rpm

 

im not sure.. it runs ok n stuff just doesnt seem like its pullin like it should through vtec n it isnt engaging at 5k rpm....any suggestions

 

yes im runnin a p28 chipped....