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Car Sputters



being its cold out. on a cold start look under the car, any leaks you have will have cold exhaust leaking form the pipe or res, or mufflers.

or the down pipe to rear manifold.

you can also block the tail pipes up some to make it show, twist a rag in the tail pipes of one muffler that will give it more pressure with out the car stalling out.
 
another question every morning when I start my car is runs really rough for a couple of minutes then runs fine like revs ups every couple seconds
 
Does the car have a fresh set of plugs & wires?

Are any of the fluids low (i.e. antifreeze)?

What year is your car?
 


this morning took apart my cold air intake to get to the MAF cleaned that and sprayed some throttlebody cleaner in the throttlebody will see how it runs tomorrow morning but got a P0068 code now
 


thats not doing it if its a open cone.

there was a guy who air box that had a few plastic bags sucked into it, starving it for air.
 
pull the hose off the brake booster. pour the sea foam in that line. go watch a you tube vid, they show how to do it.
 
found the hose and poured the seafoam in and waited 20 mins and ran it but the car still sputters when climbing up the rpms what could it be ?
 


do you guys think I should just do a tune up
- new plugs , wires , ignition coils , pvc valve , fuel filter , and I was going to get Ac Delco brand car is getting frustrating
 
So my car just started acting up in Tim Horton's drive through it was acting like when I unplug the mad sensor and got a P0507 code cleared it and car run normal now could my mad sensor be shot ?
 
car at idle, tap the maf. see if it acts up any. if it does that maf is bad maybe.

what brand did you use? aftermarket? or a acdelco maf?
 
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