hatch4raceb16
Junior Member
Ok , I have a 92 civic VX hatchback. I swapped in a B16A2 motor. P28 ecu. Used to work perfect, now I have no vtec. I have tried everything. Heres what I have done, oh and the other weird thing is that every once in a while the vtec will cut in for a split second and then go away, I can feel it. This rare, but it happens occasioinally.
1- I have tested the solenoid, it works, and even switched with my friends car to make sure thats it, SOLENOID IS FINE.
2- I have Checked and checked again all wiring, i even ran my own wires outside the car just to be SURE, WIRING IS GOOD.
3- I thought maybe my ecu was bad cuz it was chipped, but i tried it with my friends ecu that we know works cuz he has vtec, so ECU IS GOOD.
4- I have cleaned out those screens in solenoid assembly. SCREENS CLEAN.
5- I AM letting it warm up to operating temp, TEMP IS GOOD.
6- Speedo works and so the sensor must too.
7- I know I have oil pressure up there cuz i did a test with the valve cover off, started car, and tons of oil came up through the oil passages.
8- I get a CEL code when i run the car up to 8500 rpm, its 22 which is VTEC PRESSURE SWITCH CODE. Now, the helms says to check ohms on that switch and if it goes directly to 0 it is good, i did this and it goes to 0. I also read that you can overide the switch by just grounding out the blue/black wire that goes to it. I did that too and it still doesnt work.
Seroiusly people , this is a problem for one of you HONDA GODS that knows the world when it comes to these cars, please help, i feel soooo slow with no vtec, Everyone suggest ideas please. Thanks later guys....
1- I have tested the solenoid, it works, and even switched with my friends car to make sure thats it, SOLENOID IS FINE.
2- I have Checked and checked again all wiring, i even ran my own wires outside the car just to be SURE, WIRING IS GOOD.
3- I thought maybe my ecu was bad cuz it was chipped, but i tried it with my friends ecu that we know works cuz he has vtec, so ECU IS GOOD.
4- I have cleaned out those screens in solenoid assembly. SCREENS CLEAN.
5- I AM letting it warm up to operating temp, TEMP IS GOOD.
6- Speedo works and so the sensor must too.
7- I know I have oil pressure up there cuz i did a test with the valve cover off, started car, and tons of oil came up through the oil passages.
8- I get a CEL code when i run the car up to 8500 rpm, its 22 which is VTEC PRESSURE SWITCH CODE. Now, the helms says to check ohms on that switch and if it goes directly to 0 it is good, i did this and it goes to 0. I also read that you can overide the switch by just grounding out the blue/black wire that goes to it. I did that too and it still doesnt work.
Seroiusly people , this is a problem for one of you HONDA GODS that knows the world when it comes to these cars, please help, i feel soooo slow with no vtec, Everyone suggest ideas please. Thanks later guys....