hesitation , sputtering, no power??

F

FXsilverbullet

Member
Location
calgary
Hey. 64000km, no mods but pulsar plugs and k/n filter. I put in a fuel injector cleaner and now sometimes the car sputters and hesitates under 2500 rpm, NO power , but this only when car in auto mode, when in manual no power? what the heck? any suggestions beside the plugs , it just started after fuel injector cleaner?? cleaner was stp good for all sensors.:frown::frown::frown:
 
have you refilled your tank after using the additive? maybe you need to have the cleaner out of the system by using it up. (or maybe some "junk' was dislodged by the cleaner and now clogging the injector?)
Let us know what you find.
 
what about throttle position sensor ? plugged cat? oxeygen sensor? any one have any problems with hesitation? feels like it missing intermitatly ... any help woud be awesome!!!. trying to burn up gas intank and get some new gas and see what happens. tempted to change my plugs? how about the coil for the spark plug, ambey miss firing?? or would all of the above throw a code?? thank once again.
 
Somewhat sililiar issue

I also use injector cleaner and recently replaced my plugs with oem replacements. NGK Irridium. I seem to have a lack of power and hard starts. Also poor gas mileage. My starts almost are as if my battery is dying but I put in a new optima in about a month ago when the problems started.

FXsilverbullet: Any updates

Anyone else know of a resolution or cause?
Hard starts, lack of power, poor mileage.

100,000 miles. Average mpg 11. (used to average 16 before plug swap)

No codes
 
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