so anywho im not very familiar with the Vtec engines, but my friend has a 95 GSR in his EX EG coupe...his Vtec quit engaging(sp?) recently and his ECU is throwing a code 22(i think) and i looked it up and it says its the Vtec Pressure Switch.

Now my question is this, what could be cuasing the problem? just a bad sensor or could it be something else, also does anyone have one if thats the problem. and also if anyone could post some pictures of the sensor or tell me where it is located it would be greatly appreciated....im not a retard i know how to work on cars again im just not familiar with the Vteac engines i've always had SOHC non-vtec or LS's......so someone help me out here!!

 

If vtec was working previously & the vehicle has a stock ecu & no vtec controller connected to it etc. I would look into checking the oil pressure. If the oil pressure appears to be fine, I would then bypass the vtec oil pressure switch by jumping a signal wire from the vtec solenoid wire to the vtec oil pressure switch wire (in the car).

Good Luck.

 

the sensor is almost directly under the dizzy on the head.

 

Umm if im not mistaken jon its behind the dizzy not under :-X

 

 

he said Vtec was working just fine and he was racing his friend and Vtec started surging in/out and then it just stopped all together.....so any more advice would be helpful....

(MTBER) im not sure exactley how to do what you were explaining...

 

Is the ecu throwing any codes?

 

i said "almost"


and he said its throwing 22. vtec pressure.


add some oil first of all.

do you have an oil pressure gauge?

 

ohh screw me sorry for not paying attention. How far down was the oil on the dipstick? Make sure you note that first. If nothing and it was fine, you could take a multimeter to the vtec psi sensor and see if it is getting/sending some sort of signal. If im wrong anyone please correct me on this

-Joe

 

thanx guys, but the oil level is perfect, and yes it was throwing code 22, i need a sending unit for an autometer oil PSI guage, i have the guage but the sending unit is bad....so were not sure what the oil PSI is....could there be any other problems involved?