mazdaspeed101

after my car gets warmed it usually idles fine but lately it doesnt idle at all and while i am driving it hesitates does anyone know what could be the problem

cymfc3s

tps or bad vacuum leak be first things to check for.

mazdaspeed101

what is tps not to familiar with 7's

Leetheslacker

Throttle Position Sensor

1Revvin7

so this just started happening all of a sudden? You weren't messing with the car? Yes check the tps first, could be clogged cats too, or a vacuum leak, a vacuum hose could be broke.. Is this car completely stock? When was the last time you did some maintence on it?

mazdaspeed101

i just had the lower intake manifold gasket replaced and the clutch replaced and alternator replaced, last time i checked my vaccum lines looked ok , oh i just put a hks intake in but i was having problems before i stuck that on

HeffSpooled

Make sure that ground wire got re-connected that goes from the bellhousing to the firewall. Could be a source of hesitation. Shouldn't be causing the idle problem though.

vosko

make sure you aren't overboosting also!

j9fd3s

look at the intake duct from the afm to the turbo, they like to split



mike