So it all started when I had it on cruise control I noticed a misfire and then noticed my boost gauge at zero. At the time only code that came up was throttle position sensor and replace that and afterwards more codes including idle air control and mass air flow sensor came up. Was checking out the car again today and ran the scanner and only cold came up with mass air flow took it for a quick drive to see response and came back home it was driving noticably better, went home and rescanned it and now no code comes up but still runs rough....any thoughts?
Car idles high once started in park now and I shut it off before 2k rpm, boost gauge sits right at 0, pulley is spinning, and not sure now but at first was shifting into 3 and 4th gear at high rpm....
Should I just replace the mass air flow sensor, I was told to unhook it and see if it ran good and if it did it prob was the maf, which I did not, idled very rough...or should I try to idle control first and go from there? I'm pretty good fixing my cars but not too experienced with electrical and sensory issues...
Can someone help a guy out...

hi, I would first unplug the maf and take it for a small drive to see if she runs better - be sure to keep rpm under 2500 - no boost
post back with how that went - you will get maf code 102 i think- maf circuit low

_________________
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am

I also feel it would be good to post the exact codes you are getting, before, and after.

There can be several codes for each component, all meaning different things.

_________________
~Randall~


1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place

Agreed with the above, post all your codes, and give unplugging the MAF sensor a try. Would also double check for any vacuum leaks.

If it comes down to the MAF sensor, make sure you get a good used OEM replacement. Aftermarket ones are known to be flaky.

_________________
-Car Guy Carl
"Penelope" - 2003 SLE - 247k Miles
"Sydney" - 2000 Honda S2000 - 98k miles

With the boost gauge sitting at zero, you probably have a break somewhere along the line leading to the MAP sensor. The most likely suspect is the rubber T-fitting under the supercharger snout, but check all along that line.

_________________
*Gone, but not forgotten* - Black 2000 SSEi, HIR Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, 180 degree thermostat, HS 1.9 rockers, LSx yellow springs, Intense FWI, PCM, shift kit, push rods, and 3.4 Pulley. ZZP Power Log.

Definitely check the rubber T vacuum fitting under the supercharger snout, same symptoms on mine when it broke.

_________________
Ryan

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one