Ignition cut

[paniaguae640]

I have a 2003 mazdaspeed protege and here is a little history of it so it could maybe help out with resolving my current issue. The turbo had to be rebuilt because it was spewing a lot of oil so much that there was oil puddles in the intercooler pipes and even at the entrance of the throttle body so I don't know if any went into the intake manifold but I am pretty sure it did also the maf got contaminated with oil but was recently replaced with a new maf. The new maf seemed to help with drivability but lately I will be driving normally without even going into boost and it will decide to just want to stall for like a second like it is cutting ignition and it sounds like when you hit rev limiter and I press the gas but doesn't accelarate then it goes away and then the car drives normally again it does this from time to time, so I don't know what it could possibly be. Any help would be appreciated, thank you.

 

[ZealoustheEnder]

Is your maf in the hot pipe? I would start with spark plugs make sure they are clean I use a brass brush to clean them after reading for issues. They I would get a bottle of seafoam the type that has a straw for spraying in the throttle body. If you were taking in oil in your throttle body you wanna clean it up.

On a side note I would get an oil catch can.

 

[paniaguae640]

No my maf is on the cold side it got relocated because I have a turboxs bov. Ok will check my spark plugs and see if they are clean, also I heard from someone that my coil packs could be going bad how would I find out? And also what would be the symptoms for bad coil packs?...will definitely use seafoam to clean things up, thank you.

 

[ZealoustheEnder]

As far as coil packs go and checking them a lot of Times you will have cel for misfires that could indicate coils. Most coils are rated for 50000 miles I think so you might consider replacement at 20 something a pop plus wires wouldn't be a bad idea. You just don't want to Chase an issue with just replacing stuff that doesn't need it.
There are correct plugs for our cars as well.

 

[hornsfan10609]

I would start with new coils and wires, and plugs if they are old. Frequently when the coils start to fail they do not throw a CEL. Hard to tell from your description of the symptoms.

 

[Schwamm]

Frequently when the coils start to fail they do not throw a CEL.

I have gone through several coil packs and they're almost always bad enough to throw a code within a few minutes when they go. This sounds more like bad or incorrectly gapped spark plugs

 

[hornsfan10609]

I have had them fail and not had a CEL multiple times as well

 

[paniaguae640]

So I changed the spark plugs, wires, and pcv valve and the problem now went away. Thank you all for your responses.

 

[ZealoustheEnder]

excellent