4.6L V8 Technical DiscussionsAny questions about engine, transmission, or gearing can be asked here!
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Mods: Hot Rod Cams, Pacesetter Long Tubes, JLT CAI (110mm)
I have a SCT canned tune, but I doubt that's the problem as it was fine before.
The car used to run fine, then one day the o2 sensor went out, I made some extensions and got one a little too short(still connected fine, just a little tight), so I'm thinking that it may have pulled out or something and causing the issue. However, there is no check engine light?
What are some other things to check for? I have replaced plugs & fuel filter.
Could it be bad Coil on Plugs?
I sodered my connections on the O2s.
When I am driving, it just feels like it has no power, and when I shift gears into like third it will spark knock for a second. Sometimes I hit the gas (moderate throttle) and i can feel it actually stop making power, like I am hitting the brake.
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A data log by a good tuner will tell you if the O2s are working. If you have aftermarket coils, go back to stock. I would diagnose the problem to a particular spot before buying or throwing parts at it.
Motor Built by ST Motorsports
Tuned By Tony at Tuners Inc
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