VTEC Solenoid Question... B16A

**Sir_vtec** · 11-11-2006 02:30 PM

Originally Posted by lilwilliam

bigger pic if u need it.

lol thats my pic

**CRXer** · 11-11-2006 03:01 PM

Def check your wiring then,a lot of dodgy wiring gets done on swaps,especially the wires u gotta add like vtec solenoid.

Check its continuous back to ecu pin A4(ie unbroken),with plugs disconnected from solenoid & ecu.

Then make sure its not continuous to ground(ie not shorted to ground)

**AsH_** · 11-11-2006 03:36 PM

ill give it a test...
wats the cause for a code 21 - vtec spool valve???

**CRXer** · 11-11-2006 05:45 PM

Originally Posted by AsH_

ill give it a test...
wats the cause for a code 21 - vtec spool valve???

Not sure of the electronics setup,but I know mine will only read an activation fault,ie no fault code is produced until the ecu tries to activate the vtec solenoid,so it doesnt seem to do a pretest to see if its present.

So it must register an abnormal or no current flow reading from the expected value calculated from the 15-30 ohm normal resistance reading of the solenoid,when it supplies it with 12 V to activate.

Btw if u have got a multimeter put it across the solenoid to see if u get the 15-30 ohms specified,more accurate substitute for the click test.