Quote:
Originally Posted by cmyk
We are going to need some more info before we can really be of much help. With what you have provided we are all just throwing our guesses into the hat.
You said no CEL, but have you actually scanned for codes, or are you just going by the fact that there is no CEL or half engine light on currently? Not all codes will trigger an idiot light (or trigger one right away). You have COBB so use it to pull codes.
Also, I don't think I saw where you answered my question about the idle: Is the idle surging while this is happening?
This kind of info would help with diagnosis.
Also, you mentioned you just had some coding done by an indy shop. Does the option not exist for you to take the car back to the indy who last touched your car and let them know that you are now experiencing this problem? It looks like you recently replaced a lot of parts on the car. My initial wild guess would be that something was installed incorrectly.
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I scanned codes, nothing. Used COBB for that as well. Yes, it's happening at idle surging/very slow moving speed of car (~5mph) i can feel it still jerking, not at high speeds. The jerking happened after my battery died and I had to charge it up and all, so nothing to do with the Cobb tune at all or battery I think.
I uninstalled cobb though, still jerking. I also checked vehicle load at idle, it'd stay at 20 when the car jerked etc.. it'll jump to 21-22.
Thanks.