Rough idle
#1
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Rough idle
I have a 03 silverado 6.0 swap truck was running right until few days ago I was driving it and it started backfiring while giving it gas.. now it idles terrible like it's misfiring.. I took of the intake tube and the throttle body is looks like is wet but it's gas.. what would that problem be?
#2
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Any codes?
Have the log file from a tuner handy?
Have a scan tool to diag the problem and watch sensors?
It's way too hard to guess over a computer when I can't see if something is wrong through a data log/scanner. Could be tons of things. Check for vacuum leaks, fuel leaks at the injectors, bad MAF, bad MAP, bad o2 sensors.
Have the log file from a tuner handy?
Have a scan tool to diag the problem and watch sensors?
It's way too hard to guess over a computer when I can't see if something is wrong through a data log/scanner. Could be tons of things. Check for vacuum leaks, fuel leaks at the injectors, bad MAF, bad MAP, bad o2 sensors.
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No it was running better but in the highway it would backfire when I would accelerate.. they told me it was the cats so I put lt headers on it, new o2s and wires.. ran fine for like 2 weeks and all of the sudden it did it again and now it's worse.. before it had the cel p0300 code random misfire.. but it didn't smell like a 2stroke engine.. now I don't have no cel on.. doesn't throw any codea
#9
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No it was running better but in the highway it would backfire when I would accelerate.. they told me it was the cats so I put lt headers on it, new o2s and wires.. ran fine for like 2 weeks and all of the sudden it did it again and now it's worse.. before it had the cel p0300 code random misfire.. but it didn't smell like a 2stroke engine.. now I don't have no cel on.. doesn't throw any codea