Hi all, Hope everyones been well,

The SS is acting weird. I'll try and explain.

Start the car and within a min. check engine light flashes, (won't clear with scan gauge) gauge shows a misfire in all cyl. 20-255 misfires total every 90 seconds or so. Put car in gear , shift to second, check light goes out, and no misfires in any cyl. - Come to a stop, As soon as there is no throtle, Check light flashes and back to numeriuos misfires. This has been going on for a couple of days, Happens at every stop. Car drives completly normal, Boost to 24-25 (normal) No driving issues at all.

I changed the spark plugs , Made no diff. And plugs looked fine. What the hecks going on ?

Guess it'll be going in soon with its first mech. problem in 74,385 miles .

Any ideas about this weird azz prob, Let me no.

Thanks

 

Fuel pressure?

 

sounds like to me maybe a crank sensor going bad.

 

Did you put the stock intake on yet?

 

Nope , I hav'nt had a problem . A p1010 code every other day , But fine for a while. Just weird too happen all the sudden , No changes in months.

Gotta get a new air box cover.

 

I'll throw my chips in here with Rob, it sounds like you have a Crank Sensor that is going intermittent on you, its probably going to a null voltage prematurely and dropping out in the lower rpm range.

A tech with a scan tool and the smarts to check the output signal of the CPS going to the ECM will be able to confirm the failure I suspect.

 

Whether the intake is causing the misfires or not, I would get the stock setup back on if you're not going to tune for it. Fuel trims are important. There is a reason for the DTC and low boost when the trims drift too far from zero.

 

Mr. Goodwrench will find it. Thats great 75000 miles before you needed a part. Must mean we should drive ours like you do.

 

Voltage seems the key here, I'll go out on a limb and suggest alternator starting to go bad as the root problem.

 

I have the same problem but mine hasnt flashed for a while.... CEL will go on for 3 cycles then stay off for like 2-3 days.... i stopped giving a ****