Car lost power 1 block from home for a split second. Rough idle.

[SeanMc]

Title says it all.

No problems starting.
Accelleration is fine.
No stuttering up top.
Starts without any hesitation.
No CEL.
No Codes (except 511 for the LPM).
Cylinder balance test blinks 9

I was going into an intersection, hit the gas, and it felt like I let off, and just for a split second. Car was cold, like I said 1 block from home.

 

[CademiaX]

Mine does that when its really cold out and the car isnt warmed up enough. If you **** you cant get it to start again, its as if its flooded so you gotta hold the peddle to the flood and start and she will fire up.. not sure what causes that.

Mine idles a little high until its warmed up, until it stops doing that it will hesitate if I hit the gas to fast.

 

[Kens1992mtxSHO]

Mine's doing this too lately. I haven't had time to look at it but when I get the chance I'll be cleaning my MAF and air filter.

 

[SeanMc]

Drove the rest of the day, and it was fine

 

[Kens1992mtxSHO]

Yep. Mine's only been doing it when cold too.

 

[frosho]

I've had similar issues with the car crapping out for a split second. Once it was a loose DIS connector. A few other times it was bad battery connections. Food for thought...

 

[Mr Anonymous]

Check all your power and ground cable connections, especially the B+ terminal on the back of the alternator.

If all that checks out OK, try cleaning your MAF.

 

[Kens1992mtxSHO]

I got off my lazy bum last night after posting this and cleaned my MAF. Everything worked fine this morning. 25 degrees this morning and no stumbling SHO. I figured that the MAF might be the problem.

 

[SeanMc]

Mine did it again 1 block from home. I'll clean the MAF tonight.

 

[Kens1992mtxSHO]

Make sure to check all your electrical connections also as Chris recommended.

 

[yzstud]

Mine did it again 1 block from home. I'll clean the MAF tonight.

maybe it just doesn't wanna go home with you :swing:

i will give it a new home......

 

[SeanMc]

Well, it did it again coming home today, but this time it started sounding like a sewing machine. I checked codes, and it gave me a 3 on the cylinder balance test. Checked the wire (head side), and spark plug, and they were fine. Pulled the wire coil pack side, and found that coil 1 on my coil pack is fried. There's a blue powder looking substance on the contacts that doesn't come off. I tried scraping, no luck. There's some blue on the wire contacts, but luckily that cleaned right off.