Hello everyone! Been lurking for a while, finally decide to join. Here we go so don't roast me too bad.
Like the title says I am experiencing some surging at cruise, not enough to make the car jerk but like a soft hunting idle while your driving. It does it during mid throttle and WOT as well. my wideband is rolling from 13.1 up to 15.7/16.1, back and forth, back and forth consistently and coincides with the surge I'm feeling. Usually the wideband wanders a little bit but doesn't pinball like this at cruise. It started doing the surge yesterday, noticed the wideband dance today. I would assume it's a fuel or MAF issue?
I just did cap & rotor, plug wires, blue top coolant sensor last week, 02 sensor has 600 miles on it. Intake boot is new, valve cover vented to atmosphere. I plan on checking fuel pressure tomorrow...anything thing else I might be overlooking?
Background on the car
1984 eta
600 miles on a fresh rebuild, hone, new crank/con rod bearings and rings
127 DME conforti chip
200 head,
272 reground cam, i valves & dual springs, added oil journals
65mm TB
3 bar fpr
refurbished white top low impedance injectors
cold start valve is deleted
Like the title says I am experiencing some surging at cruise, not enough to make the car jerk but like a soft hunting idle while your driving. It does it during mid throttle and WOT as well. my wideband is rolling from 13.1 up to 15.7/16.1, back and forth, back and forth consistently and coincides with the surge I'm feeling. Usually the wideband wanders a little bit but doesn't pinball like this at cruise. It started doing the surge yesterday, noticed the wideband dance today. I would assume it's a fuel or MAF issue?
I just did cap & rotor, plug wires, blue top coolant sensor last week, 02 sensor has 600 miles on it. Intake boot is new, valve cover vented to atmosphere. I plan on checking fuel pressure tomorrow...anything thing else I might be overlooking?
Background on the car
1984 eta
600 miles on a fresh rebuild, hone, new crank/con rod bearings and rings
127 DME conforti chip
200 head,
272 reground cam, i valves & dual springs, added oil journals
65mm TB
3 bar fpr
refurbished white top low impedance injectors
cold start valve is deleted
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