- Tue Nov 19, 2013 2:34 am
#339021
Would appreciate your ideas, questions to help me solve this fueling issue. I've got a D15B8 (CX motor) that recently began pinging consistently. 170K miles, compression ok on all cylinders, all (new) plugs show white tips, replaced fuel filter, idles fine but any partial throttle/load and pinging starts. Replaced MAP sensor after testing. No CEL or codes. Have used two gas tanks with Techron (and pinging less when Techron is in gas) but pinging returns with just gas (using Chevron premium 91 octane). Set timing at the spec 12 BTDC at idle, still pinging so I've retarded it a few degrees but I can still hear slight pinging. Don't hear or see any obvious vacuum leaks. No surging, just pinging. Accelerates ok. Am I overlooking something basic?
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My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage
My 1992 SOHC Turbo Hatch
My Youtube Channel: 6th Gear Garage