rewiring vtec pressure switch?? iab ?'s too

[Turbo Dave]

i remember seeing somewhere that i could delete the vtec pressure switch by wiring 2 pins together? my switch is bad so im gonna wire it


also my phearable ecu doesnt use iab's in the intake manifold and it says to unplug them so my question is can i take them out without fuckin up any shit. also is therye a diy to take them out

im such a noob

[NAiL05]

Dont be cheap and buy a new pressure switch if not find one at a jyard and pocket it.

Just unplug the vac line for the IAB just plug up where it goes to the IM.

[owequitit]

I agree. Bypassing your pressure switch is removing a safety net.

They aren't very expensive. Do it right and replace it.

As for the IAB's, you can do 2 things.

1) You can disconnect vacuum so they stay open. I don't think this is going to increase your HP.

2) You can pull the plenum off (5 nuts/bolts, and remove the IAB plate altogether. You will need 1 plenum gasket, so that you have a gasket to put on there.

There is some controversy on the effectiveness of doing this as well. Some people claim to have seen 5WHP and 5 WTQ from removing them, some claim to have lost power and some claim to have not seen anything.

[cp[mike]]

on my car, with the pressure switch disconnected, i get a CEL. but if i connect the d6 pressure switch wire to the a4 vtec solenoid output wire, no CEL. gives it the signal that the pressure switch is ok i guess effectively a pressure switch bypass... the switch is a safeguard against going into vtec with low oil pressure. but if you have the switch already, you might as well just wire it up properly... i didnt, because my motor didnt come with one from the factory, like some other jdm h22s.. and now after my issues, i wish i had one.

also for your intake manifold, you can take the IAB plate out if you pull the two studs out of the lower half, and get 5 bolts the right size and length to bolt the plenum right to the runners.. or just leave the vac line disconnected, and the valves will stay open.


edit: scott beat me

[Turbo Dave]

on my car, with the pressure switch disconnected, i get a CEL. but if i connect the d6 pressure switch wire to the a4 vtec solenoid output wire, no CEL. gives it the signal that the pressure switch is ok i guess effectively a pressure switch bypass... the switch is a safeguard against going into vtec with low oil pressure. but if you have the switch already, you might as well just wire it up properly... i didnt, because my motor didnt come with one from the factory, like some other jdm h22s.. and now after my issues, i wish i had one.

also for your intake manifold, you can take the IAB plate out if you pull the two studs out of the lower half, and get 5 bolts the right size and length to bolt the plenum right to the runners.. or just leave the vac line disconnected, and the valves will stay open.


edit: scott beat me

ok so i connect the two together, and im still getting the code?

oil is fine....

i reset the ecu and everything

but it keeps flashing 22, its always flashed 22, and ive had vtec before when its flashed 22. wtf