Injectors don't shut off when engine braking, i'm stalling too. Help

[dsmoverboosted]

First this is happening on my Stealth but it pretty much shares the same sensors, ecu ect.. so maybe someone here can help.

This started after my vacuum reduction and egr removal. Before my wide band would max lean every time I engine braked which makes sence since the injectors cut out but now I get a reading the whole time I engine brake and usually it stalls out on me because its flooded in fuel (ie when I fire it back up my wideband shows max rich).

What could cause this?

I have boost tested and the intake hold's pressure even better than it did before (must have had a leak in a vac line that was removed).

I hooked up and un blocked my egr to see if that was the issue but that did not fix it.

All my vac lines are routed properly bov, evc ebc and fpr function properly

My TPS is reading the same as it always has been on my logger.

I am out of ideas, please help.

 

[steve]

Have you verified the operation of the IPS with either your logger or with a voltmeter.
If the ECU doesn't see the throttle close it won't go into decel fuel cut. Check the VSS too.

 

[dsmoverboosted]

I got it figured out, it was the idle stop switch. I didn't think there was one in the 3s since there is no switch on the firewall side of the throttle body like a dsm, it's inside the tps. I adjusted the tps and it works fine now. I guess the tps moved a bit (like .5%) during the vac reduction due to one of the screws being loose and that was enough.

Thanks for the reply

 

[steve]

Yes the IPS on the 3S is like the 2Gs, it's inside the TPS. You adjust them pretty much the same way with a feeler gauge and ohmmeter.