Car Sputtering

[keeler]

When my car is in between 0 and 10 vacuum on my boost gauge it starts stuttering kind of. It only does it on slight throttle and normally in the higher gears. If I push the trottle in, it goes away, if I let off it does also. Only between 5- 35% throttle does it do it.

 

[Portilla]

Stock ecu or piggy back comp or AEM...?

 

[awdtalontsi1992]

Sounds like either an EGR problem or a dead spot in your TPS sensor (my guess). Any CELs?

 

[keeler]

No CELs, nothing on it besides stock ECU. I have an SAFC but it's not tuned yet since my wideband is on backorder due to financial reasons. Fairly new TPS.

 

[boosted86]

is your afc zeroed out?

 

[hereitcomes]

Check your EGR valve. It probably has come loose. Mine would do this as well, we overlooked it and it would die sometimes, and sputter while idling, and I would get around -10 vaccum. It also wont throw a light. Mine was unhooked and no lights were on for me.

 

[keeler]

I'll check tonight. My AFC is not zeroed out however it is only set to -10% at idle not while driving to save a bit of gas and help the idle.