Rough idling

[bktply]

When I start my MSP it idles bad and the car shuts off. When you take off it takes a while for the power to kick back in. At full throttle it seems like there is no power. Does anyone know what could cause the car to run this way?

 

[destineal]

what mods do you have? you gotta give more info about your car. check your spark plugs?

 

[bktply]

The car is stock other than an Injen intake. Do you think its something with the fuel?

 

[BOOSTR]

How many miles on the car? Worn out coil pack(s), plug wires or plugs. Vacuum leak or faulty TPS are other possibilities. Might need a complete tune up: new pcv, fresh plugs, clean the injen filter, run some seafoam through it. I'm sitting near almost 86K and still have my original coil packs and wires but have done what I'm recommending a few times in accumulating those miles. So far I've had no idle or performance issues.

 

[destineal]

+1 for the seafoam, I just bought some this morning.

 

[black daliha]

heres a good free steam cleaning that everyone needs to do on a high milage engine even tho are cars are effeciant that meens it gets more carbon take a water bottle with a sprayer that sprays just mist then take the brake booster hose off that gets vacuum from the manifold and start the car and raise the rpm to 3000 and spary water into the hose how much is ur judgment but make sure its a mist not a liquid and it will steam clean ur engine

 

[mazdaspeedp]

check your wastegate too