Hi guys,
Finally got my boosted mustang running decently but now I have a lean condition at partial throttle. I had it in at the shop and they had a brief look but they think it might be dirty O2 sensors. They checked grounds and vacuum leaks. Problem seemed to start up once I changed my msd box and wires. Everything’s hooked up correctly but at idle I run pretty lean according to my wideband and lean at slight throttle. Once I’m into it it’s fine but has that hesitation at slight throttle . I checked my fuel pressure gauge and that’s good but I’m thinking it must be those O2 sensors or maybe plugs ?
What do you guys think?
Finally got my boosted mustang running decently but now I have a lean condition at partial throttle. I had it in at the shop and they had a brief look but they think it might be dirty O2 sensors. They checked grounds and vacuum leaks. Problem seemed to start up once I changed my msd box and wires. Everything’s hooked up correctly but at idle I run pretty lean according to my wideband and lean at slight throttle. Once I’m into it it’s fine but has that hesitation at slight throttle . I checked my fuel pressure gauge and that’s good but I’m thinking it must be those O2 sensors or maybe plugs ?
What do you guys think?
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