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Old 10-08-2013, 08:13 PM
Jeff in AL's Avatar
Jeff in AL Jeff in AL is offline
LawnSite Senior Member
Join Date: Jul 2000
Location: Alabama
Posts: 599
Originally Posted by jcan View Post
Ok guys I put new plugs in today and new o2 sensor, and when I crank it up it just runs at a low idle??? Won't speed up when I turn up the throttle or do anything. Any input?? I guess be putting the old sensor in tomorrow as it ran better with the old one in
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Not very surprising being that you are just throwing parts at it to begin with and secondly using non oem parts at that...

As mentioned a page or two ago, what is the fuel pressure reading? That is where to start with EFI problems! No a bad fuel pump or restricted fuel filter will NOT throw any codes...

As far as yours thowing a Code 34, well here are the possibilities...

Another thing to know is which version ECU is on your unit...
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File Type: pdf Code 34.pdf (15.0 KB, 21 views)
Jeff in AL

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