HHR SS Shutting off / Running rough for about the first few minutes each morning ?'s
Senior Member
Joined: 02-13-2010
Posts: 698
From: HuskerNation
Check out ZZP. They have wut u need. I went with CIA but didnt recieved the pipes until two months later and they only use mild steel for the pipes. I would much rather have stainless ( which ZZP offers) but I wanted silver powdercoat.
Senior Member
Joined: 11-05-2010
Posts: 1,492
From: Detroit, Michigan USA
Thanks Jennifer
I am switching dealers going from a dealer that says well if its not doing it when we drive it even though it has stored check engine light codes and I have data logging to prove it.to a dealer that says obviously there is a problem and we will fix it.
I am switching dealers going from a dealer that says well if its not doing it when we drive it even though it has stored check engine light codes and I have data logging to prove it.to a dealer that says obviously there is a problem and we will fix it.
Jessica L.
Chevrolet Customer Care
Thread Starter
Senior Member
Joined: 10-19-2011
Posts: 1,553
From: N.Y.
New dealership is great mechanic and parts manager even better.
Pipe with boost leak has been replaced not sure why it was not covered under warranty still looking into that and waste gate was off just enough so it was not fully shutting.
Car seems to run better and so far so good hoping and praying no more issues with the limo mode and check engine lights.
Pipe with boost leak has been replaced not sure why it was not covered under warranty still looking into that and waste gate was off just enough so it was not fully shutting.
Car seems to run better and so far so good hoping and praying no more issues with the limo mode and check engine lights.
Glad to hear that the new dealer is on the ball, fingers crossed for no more CEL's.
Senior Member
Joined: 11-05-2010
Posts: 1,492
From: Detroit, Michigan USA
New dealership is great mechanic and parts manager even better.
Pipe with boost leak has been replaced not sure why it was not covered under warranty still looking into that and waste gate was off just enough so it was not fully shutting.
Car seems to run better and so far so good hoping and praying no more issues with the limo mode and check engine lights.
Pipe with boost leak has been replaced not sure why it was not covered under warranty still looking into that and waste gate was off just enough so it was not fully shutting.
Car seems to run better and so far so good hoping and praying no more issues with the limo mode and check engine lights.
Jessica L.
Chevrolet Customer Care
Thread Starter
Senior Member
Joined: 10-19-2011
Posts: 1,553
From: N.Y.
Well pretty sure I have the worst luck.
Been running great since Tuesday when dealer replaced leaking upper pipe until this afternoon. Driving along it started running rough vacuum gauge was jumping. Pulled off off highway stopped and it was barely roughly running.
Keyed off started up ran OK with pending p101 code.drove 10 miles off highway. No problem
Stopped at a store for 20 minutes
Drove 5 miles got back on highway and about 2 miles later it started running rough again and kicked on CEL p101 with p106 pending.
Dealer said next step is maf.
Hoping I can hang in there with this issue I have about had it.
Hopefully maf will do it
Wondering though if its o2 sensor wideband
Or something else
Does that sound right.
Thanks
Mike
Been running great since Tuesday when dealer replaced leaking upper pipe until this afternoon. Driving along it started running rough vacuum gauge was jumping. Pulled off off highway stopped and it was barely roughly running.
Keyed off started up ran OK with pending p101 code.drove 10 miles off highway. No problem
Stopped at a store for 20 minutes
Drove 5 miles got back on highway and about 2 miles later it started running rough again and kicked on CEL p101 with p106 pending.
Dealer said next step is maf.
Hoping I can hang in there with this issue I have about had it.
Hopefully maf will do it
Wondering though if its o2 sensor wideband
Or something else
Does that sound right.
Thanks
Mike
Thread Starter
Senior Member
Joined: 10-19-2011
Posts: 1,553
From: N.Y.
Well
Bad news
Dealer installed new upper boost Hot pipe from turbo to Intercooler.
Not looking like its covered under my bumper to bumper warranty according to my dealer but they are looking into it.
Car was running great better than ever then 6 days after the dealer installed the new pipe
out of no where while cruising on the highway it started running rough again and triggered the P0101 MAF code car ran horrible pulled to the side started back up in a minute and ran ok until it did it again about an hour later
Cars commanded afr was 14.08 as usual but measured shot up to 17 plus when this started
please take a look at the link below which will allow you to download the excel document that shows the data logging when it happened.
http://hhrss.weebly.com/data-info.html
btw boost tested new pipe and it is leaking in the same spot just not as bad
Bad news
Dealer installed new upper boost Hot pipe from turbo to Intercooler.
Not looking like its covered under my bumper to bumper warranty according to my dealer but they are looking into it.
Car was running great better than ever then 6 days after the dealer installed the new pipe
out of no where while cruising on the highway it started running rough again and triggered the P0101 MAF code car ran horrible pulled to the side started back up in a minute and ran ok until it did it again about an hour later
Cars commanded afr was 14.08 as usual but measured shot up to 17 plus when this started
please take a look at the link below which will allow you to download the excel document that shows the data logging when it happened.
http://hhrss.weebly.com/data-info.html
btw boost tested new pipe and it is leaking in the same spot just not as bad
Senior Member
Joined: 02-13-2010
Posts: 698
From: HuskerNation
I am no expert when it comes to tuning these cars but a couple things on that log caught my eye. First, when you started logging your IAT was 140 degrees! I never see that unless you let the car idle for a very long time and the log says the outside temp was only mid-70s. Second, other parts of the log are showing commanded AFR of 28+. That is waaaaaayyyy lean. I'm not sure what would cause an error with commanded AFR.
Thread Starter
Senior Member
Joined: 10-19-2011
Posts: 1,553
From: N.Y.
Whenever I let off the gas it goes to 28.16 commanded.
The problem I seem to have is just cruising a long on the highwsy it will have a commanded 14.8 as usual then out of no where the measured AFR goes way up to 17 20.
Leans it and runs rough.
New upper pipe leaks like almost. As bad as first gm pipe...
The problem I seem to have is just cruising a long on the highwsy it will have a commanded 14.8 as usual then out of no where the measured AFR goes way up to 17 20.
Leans it and runs rough.
New upper pipe leaks like almost. As bad as first gm pipe...
