Code with chip P28 ecu ?
 

What is this code: one long, one long and one short ? Do it's 21, I need the confirmation, do it's the code for the vtec solenoid?

If I want control the Vtec just with my VAFC I also need to plug the solenoid to the p28 but I don't understand why I will appreciate some information ?

Thanks !!

Re: Code with chip P28 ecu ? (jack25racing)
 

Code 21 is VTEC Solenoid Valve (defective circuit or unplugged/ defective solenoid valve).
I have a chipped p28 with a Fields Vtec controller wired to the ECU. Not sure why you have to though. Maybe its tied in with somthing else in the ECU?

Re: Code with chip P28 ecu ? (HOND PWR)
 

I have connect the VTEC Solenoid Valve and now it's the code 22, this is the code for the vtec pressure switch, but I don't have this ?%$$%@# of switch (JDM b16a1 head). I was thinking the chip P28 don't check this sensor ?

Re: Code with chip P28 ecu ? (jack25racing)
 

the 88-91 pr3 dohc vtec ecus dont check for the oil pressure, the P28 and other 92+ vtec ecu's does ... need to trick it. Also, if you install an SFC vtec controller or Apex VAFC it will give the euc the signal for you.

Greg

Re: Code with chip P28 ecu ? (CHEETAH)
 

I am not sure to understand, can I simulate the vtec pressure switch with my VAFC or do I need to install this sensor ? I am I little confused

Re: Code with chip P28 ecu ? (jack25racing)
 

the vafc gives its own simulated signal to the ecu, and does not require input for the pressure sensor.

Greg

Re: Code with chip P28 ecu ? (CHEETAH)
 

If I want to install the pressure switch can I plug it at the place of the 10mm bolt just under the solenoid. But I already waiting to know how can I bypass this switch with the VAFC ?

Re: Code with chip P28 ecu ? (CHEETAH)
 

Thanks, I will try this !!!

Re: Code with chip P28 ecu ? (CHEETAH)
 

Everythings works great and it's very powerfull, thanks of your help !!!