h22a cel code 22

[nelsond]

93 accord ex H22a type s lsd
No vtec at all
cel code 22
went to the honda dealer and purchased a brand new
vtec pressure switch and vtec soleniod
changed the oil and oil filter and the levels are fine
still no go so i checked the ecu wires and pin outs
- Vtec solenoid: Pin A4
- Vtec pressure switch: Pin D6
- Knock sensor: Pin D3
and ran new wires still cel code 22
picked up my friends ecu to test and the same problem.
so i pulled of the vtec pressure switch off
and it barley has any oil on it.
no matter how hard i drive the car the
vtec will not come on and why does
the fans never come on and there plugged
up could it be the car is cold which i doubt
and if so how can i fix it.

[blackice]

one of the requirements for vtec is warm coolant....check your thermostat yet?

[NAiL05]

one of the requirements for vtec is warm coolant....check your thermostat yet?

To operate vtec you will need

1. Engine to operating temp
2. Oil level has to be good
3. DOES NOT WORK REVVING IN NEUTRAL
4. No CEL's

[nelsond]

yeah the temp sensor is moving toward the middle but does not go
all the way. another thing is that my car idles like its going to
2000 rpm then drops backdown to 800rpm allday long
it may not be enough coolant iam gonna pull the
thermostat out and check again and if no go ill post back

[ez8o5]

To operate vtec you will need

1. Engine to operating temp
2. Oil level has to be good
3. DOES NOT WORK REVVING IN NEUTRAL
4. No CEL's

so if your throwing any cel that means vtec is not working?

[F22PwrdInspire]

so if your throwing any cel that means vtec is not working?

This is correct. If you have a CEL that is on, the ecu runs in a "limp" mode state. You will be dumping fuel, not excess, but there will be a little bit more fuel consumption due to the fact that the ecu is running a basemap that will fatten everything up slightly until the issue is resolved.





As far as the idle surging discussed above, you may have to "burp" the coolant system to relieve it of any excess air that may be in the system and fill it with coolant while "burping".