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Stuttering, RPM gauge going crazy. HELP!

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oplix

15+ Year Contributor
217
0
Mar 9, 2008
Zion, Illinois
I was driving today as normal and I floored the car for like 5 seconds. Next thing I know my AEM Wideband turns off (it's seeing leaner than 17.0) and the car goes into limp mode. I pull over to the gas station and check to see if anything is out of the ordinary under the hood and nothing seems wrong.

I start it back up and it goes back to normal but after driving it really slowly for another mile or so it starts doing the same thing. Since then, it hasn't gone away.

I came home and changed out the spark plugs for brand new BPR7ES plugs. The problem still persists.

The symptoms are as follows:

Car will idle at around 500 rpm

Most of the power is lost (it will just limp around in all gears)

When I give it gas (especially in first gear) the RPM's will start going crazy up and down and the car will jerk around like it wants to use more power but can't.

Wideband does not give a reading (it's seeing it as a very lean condition).


Any ideas guys? My engine sounds normal. There is no leaks. The only code it's throwing that I haven't seen before is P300 which is random misfire but that's obvious since it's stuttering around. I'm 99% sure it's either Ignition or Electrical related.
 
PROBLEM FIXED: I have my wideband set as my front o2 sensor and I guess I accidentally hit the wire while driving and caused it to come loose. Car runs great again.
 
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