Can too much fuel pressure cause tuning issues??
10-12-2009, 03:44 PM
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Can too much fuel pressure cause tuning issues?? I swapped a 03 lq4 into my s10 only mods are a custom comp cam and 85 mm tb. I ran an aeromotive A1000 w/-8 feed and 3/8 aluminum return. Im getting about 75-80 psi at the rail... Is this too much? Im also a little conserned because when I just went to put the cam in I noticed the plugs looked like they were on the lean side (white chaulky residue) Plus im getting a P0200 injector code. Could my fuel pressure cause this? Im waiting on a tune for my cam from nelson perf but Im thinking there is another issue seeing as how the plugs had 200 miles on them before the cam swap and already looked lean. I have also been getting a popping and studder through the exhaust since motor was started ( only under a load) Any help or advise would be great.
10-12-2009, 04:53 PM
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I swapped a 03 lq4 into my s10 only mods are a custom comp cam and 85 mm tb. I ran an aeromotive A1000 w/-8 feed and 3/8 aluminum return. Im getting about 75-80 psi at the rail... Is this too much? Im also a little conserned because when I just went to put the cam in I noticed the plugs looked like they were on the lean side (white chaulky residue) Plus im getting a P0200 injector code. Could my fuel pressure cause this? Im waiting on a tune for my cam from nelson perf but Im thinking there is another issue seeing as how the plugs had 200 miles on them before the cam swap and already looked lean. I have also been getting a popping and studder through the exhaust since motor was started ( only under a load) Any help or advise would be great.
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10-12-2009, 07:12 PM
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I have stock injectors and a stock rail, intake and fuel pressure regulator. Would this denote a bad regulator our is my fuel pump just pushin too much to a stock rail and regulator?
