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[randyshear]

Well shoot.. I bought it.. Oops..

[Rocketman]

Narrowband O2 gauges are more or less eye candy...a good wideband O2 system will readout your realtime AFR with a digital display (ie. 12.7:1) i use a PLX SM-AFR which has both the digital readout and the eye candy gauges, yes its expensive but I needed it to tune things in. Narrowband cant help you there

[moot]

mine is doin the exact same thing what ground did you check ??

[randyshear]

The grounds at the thermostat housing, and I pulled the upper and lower housing bolts, and cleaned them as they supply the ground for the plate the other ground wires attach to. It fixed it 100%. Hope that helps you out.

[moot]

yes and no i now know which ones to clean but dont know where the flip it is lol

[moot]

nvm found it

mines not even attached
someone took it off when they replaced the thermastat and never put it back on

[coco-customs]

Hey thats what happened to me and thats why I ended up with a $500 XR2    Never looked to far into it but im pretty sure its a ground for a important sensor the ECU needs for closed loop operation.When your at WOT or mabie hiting bumps the ECU switches to open loop and that sensor/ground is not needed.

[moot]

i fixed it and now my car doesnt even lag when i smash it

[randyshear]

Cool. You are the first person I have helped on here!! YAY!!    Glad I could help!

[debbie schaefer]

somebody please help. we've replaced the bac/isc, and the air flow meter. she's still running very rough. won't stay started. rpms drop and surge.
help!!!deb

[Rocketman]

Have you checked for vacuum leaks? all the intake piping buttoned up tight?

[Grimsleeper]

Man I'm glad I found this thread!  Mine started doing the same thing yesterday.  I found the water neck was just slightly loose and I guess that was just enough to disrupt those grounds.  I replaced the gasket and cleaned all those grounds and it seems to be back to normal now.

[wcdeangelo]

Ok this issue isn't getting any better at all. I have changed the plugs, wires, cap & rotor, air filter, fuel filter, and added fuel system cleaner, and filled it up with 91 octane. It drives out great as long as you are accellerating, but as you are crusing, you feel it bog down, and the speedo starts going backwards, then the boost gauge goes up, then as I hit the gas again, it will surge forward, and take off. I have been checking vacuume hoses, and found one cracked that goes to the BOV, but it still holds pressure. Runs absolutely great as long as you are hitting the gas.. No CEL is on either.. What could it be?

i'm new to this turbo thing but is it possible that exhaust gas is making it's way into the intake? increaced preasure but no power?

[Jim Simms]

I had same prob for first year or so.
Finally went to auto parts store and bought about 4 feet of rubber tubing.
Start at the charcoal canister (next to strut tower on passenger side) a start replacing vacuum hoses. A few go to the throttle body. There are three diff sensors/solenoid from the charcoal canister. Replace 4-5 hoses. I had no idea if it would work, and I cannot tell you which one worked, but the prob was a vacuum leak.