I have a 08 HHr ss automatic, love the car, but seem s to have a miss or skip at about 40-60 intermittingly. Also there is no codes. Any real ideas as to what could or may be the cause for this. I only use 92 or 93 octane fuel also new plugs at 8 months ago. Boost is normal power still strong, this is strange for me need some insight "help"

 

what do you mean by skip?
do you mean when driving at 40 and gas it, It sputters and misses till you get to about 60? Or does it keep surging, power then no power then power ect.?

 

Clarify better please.

 

With fava beans and a nice chianti.

 

Don, nice tie to Hannibal Lector

 

Lawdoggs "clarify" just hit me like "Clarice".

It was a mood thing.

 

Most people miss the fact that the three things Lecter couldn't have while he was taking his medication are wine, beans, and ....... liver.

 

What brand/kind of spark plugs. The LNF doesn't like certain brands.

 

Yes back to the help desk! The LNF s only like the AC Delco plugs it seems, I'm sure others could chime in to dispute that but the question remains, what brand plugs do you have in there now?

 

Now myself I have two tunes on mine the GMTU and Hp tune I run NGK iridium step 2 colder plugs with a 30-32 gap and my car loves them and runs real good with that selection my car did not like the stock AC delco plugs at all and did kinda what your explaining. Now turbos like to run on at least step 1 cooler and they love the iridium's.
also have noticed this person hasn't been back since his original post on 6-10?
Tim