LiL JoN

Have a 99 hatch just swapped a b20 in it drives fine but when it's warm sometimes dies and when coming to a stop dies at times what could it be ?? Some have said change ur fitv valve , and the igniter can cause that ??help

grumblemarc

iTrader: (4)

Check timing? CEL? Last tune up the engine had?

idriveahonda

Pull intake.

Cover bottom hole within the throttle body.

If the RPM doesn't change when covered vs. uncovered...there is an issue with the FITV.

Same deal for the IACV (the hole on top).

LiL JoN

No cel not sure on the tune up...
Will try the hole cover to see

idriveahonda

And when I say cover the little holes, I mean use your finger.

There is a vacuum there, so you will know.

LiL JoN

k thanks

A lil 2.3l action

There is a big issue with the ignition switchs in these things. If the things above dont pan out, check the ignition switch.

LiL JoN

Ignition switch will cause this problem??

LiL JoN

I cover the bottom hole and min change but the top it dies and when I unplug the iacv it does too what could it be??

LiL JoN

EsotericImage

iTrader: (8)

well, if its a B20 swap, you should be on a tune.. what ecu and management system you using?