my friend just helped me install a vafc on my 99 gsr..after the installation..everything was fine..the thing was we thought vtec engages at 5500 so we set it to 5500..when it really engages at 4400 ..after driving it a while and hitting vtec..it threw a cel..22..can anyone confirm that 22 is vtec malfunction..what should i do now..im really worried that i might really damaged my car..after the cel came on..we disconnected the battery to reset it so the cel would go away..now when i reach around the vtec rpm doesnt feel like it engages anymore..when i use to hit it..it can hear the diff tone in the exhaust..now it stays the same thoughout the rpm band..any help on where to go from here..i set it back to 4400 now and the codes off for i disconnected battery..

 

dont most people set the crossover lower? not higher?

 

Code 22 is: VTEC Oil Pressure Switch defective circuit or unplugged/defective oil pressure switch.

i figured i had the wrong code problem..so since whats stated above is the problem where do i go from here?

 

replace it, or find out why exactly it doesnt work

 

how do you go replacing it..i was told maybe it was something wrong with the wiring..but i went over that and everything seemed to be wired right and fine..oil was changed last week.....

 

well i don't own a GS-R so i'm assuming it's because VTEC enages at 4400, everyone think the secondaries is VTEC when it's not, well whenyou hit 4400 and all the conditions were right to enage VTEC ECU sends the signal, but yet VTEC did not engage. well the ECU does not know you have a VAFC, so it thinks the pressure switch to enage VTEC is broken. then you climb to 5500 and bam VTEC engages.

now think if you were that ECU how confused you would be if you didn't even know the VAFC existed.

 

just get a new on and learn more about ur car before setting it

 

double check your wiring. the vafc should have a connection for the vtec oil pressure, make sure it's hooked up.

 

every wire seems to be hooked up..but the blbue wire isnt..i dont think its suppose to be as ive read..also if this would help more..redline first and second fine..then once i redline 3rd..thats when the code comes on..

 

can someone answer this..is the blue wire (vtm) suppose to be connected..those who have a vafc in a gsr?? or was it hangin loose by itself..i think that might be the resolution..some say if connected vtec wont engage..but some say its suppose to be..mine isnt at the moment..

 

someone has to have a vafc in their gsr now??..bluye wire vtm signal wire hooked up or no??

 

i had the same probelm when i jsut got done installing i threw on the same code it is vtec malfunction and vtec engages at 5600rpm whats happening at 4500 is the intake manifold also the way i stop throwing the CEL is i switched the vafc for another one and then it stopped thats the only thing i can tell u and yes i hooked up the vtm wire on my 01 gs-r