Car acting like its running out of fuel...
#1
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I just did a ls swap into my 79 malibu. Its a lq4 with a small camshaft And a few other small things. It has a aeromotive a1000 fuel pump Since im going to put the blower on during the winter. But When i get about 3/4 throttle it starts sputtering and acting like its running out of fuel. Somedays are worse than others sometimes it'll do it 10 times some just 2 or 3. Could this all be due to not having a actual tune on the car besides what speartech did when they re did the harness??? Any advice would be greatly appreciated
#6
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74 psi when ideling. havent got to drive it due to work and rain. Ive got it tuned still does it in both speed density and with the maf on. Checked to see if trash was in fuel filter so i ran a flow test and it flowed a gallon in 30 sec. ive checked the coil packs there good, checked the grounds there good, Ive changed plugs, spark plug wires are good. Any other ideas?? You can tell it wants to clear up but it just doesnt. Only does this when u ease on if from half to full throttle or you just hammer on it