Major false KR on 2000 Malibu 3100 [Archive] - GrandAmGT.com Forum

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Zef_66
08-27-2008, 09:29 AM
So my wife has a 2000 Malibu 3100 engine with about 110k miles on it. For awhile she has complained that it lacked power and would "jerk" when going up hills. I initially thought the tranny was acting up. So I take it out and scan it. Holy schnikeys, the thing showed upwards of 15 KR!!! I was dumbfounded.

The entire car is stock. I haven't modded it at all. I did make some changes to shift points, fan settings, TCC lockup, etc. But I didn't touch the timing at all. None the less, I write the stock bin back to her car. So everything is 100% stock now. Still major KR.

So I wait till the tank of gas is getting low, and fill it with 93 octane. Scan it after a day or so, and still the same amount of KR. So I am assuming it is false.

Any ideas on where to start with this thing? I am lost.

cardude007617
08-27-2008, 09:42 AM
knock sensor?

lvemy3100
08-27-2008, 09:43 AM
might be from something physical but one thing to keep in mind is that torque management during shifts and other events will show up as KR

Zef_66
08-28-2008, 06:04 AM
might be from something physical but one thing to keep in mind is that torque management during shifts and other events will show up as KR

I don't think it is tune related. I think it is more mechanical. But I can't think where to start.

Here is a scan I took or the car:

http://www.scandepot.net/viewscan.php?pk=5310