Skip at 40 MPH
#1
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Skip at 40 MPH
This is weird but it feels like it is running out of gas so I'm 90% sure it's fuel related. My '93 LS 126K will drive perfect with plenty of get up and go, or cruising under 40 MPH. If I'm at a steady speed as soon as I hit 40 - 41 it will start to buck and jump. When I hit 46 -47 MPH it will go back to normal. When I accelerate it's fine. I've done alot of searching the past couple days but can't find anything useful. I'm just looking for ideas right now b/c it doesn't bother me that much, I just don't drive in the 40s. I'm wondering if it could be the fuel filter, injectors, or pump. I haven't pulled any codes b/c the light is on for other reasons. (AFM unplugged) Any ideas?
I was just thinking, could this be the TPS? I'll pull the codes later when it warms up a couple degrees and post it afterwards.
I was just thinking, could this be the TPS? I'll pull the codes later when it warms up a couple degrees and post it afterwards.
Last edited by deanshark; 12-10-10 at 07:05 AM. Reason: another thought
#3
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Thanks, I'll check the TPS when I get a chance sometime next week. I haven't had a chance to pull codes yet but, like I said, it doesn't bother me much. Thanks for that page. I have a manual but it's in storage right now so this page will help.
#5
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I just pulled the codes and all I got was 24 (Intake air temp. sensor signal) and 31 (Air flow meter signal) Those are there b/c I have the AFM unplugged, which I know is bad. It's been like that for a long time (I just keep putting off fixing it) but these new symptoms just popped up about a week ago.
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