Ford vs Chevy Build-up

SSGT Mustang · 04-30-2015, 08:57 AM

Check the connection to O2 sensors. There's a connection from the harness near the passenger side strut tower. Disconnect it, clean the inside well, make sure the connectors clamp tightly and reconnect using dielectric grease. Do the same where the wires terminate at each O2 sensor.

I have a convertible street car with heads, cam, etc. I had the same problem that you are describing. By chance, some kid told me about those connectors and that it's not uncommon for them to get corroded, preventing the O2's from looping back to the computer. I cleaned them up, put in the dielectric grease and the problem went away.

I use a moates quarterhorse to tune the engine. When you programmed the computer, did you change the variable for injector size to 24 lbs.?

04-30-2015, 08:57 AM	#20
SSGT Mustang Member Join Date: Mar 2005 Location: Jersey Posts: 359 Likes: 35 Liked 204 Times in 54 Posts	Re: Ford vs Chevy Build-up Check the connection to O2 sensors. There's a connection from the harness near the passenger side strut tower. Disconnect it, clean the inside well, make sure the connectors clamp tightly and reconnect using dielectric grease. Do the same where the wires terminate at each O2 sensor. I have a convertible street car with heads, cam, etc. I had the same problem that you are describing. By chance, some kid told me about those connectors and that it's not uncommon for them to get corroded, preventing the O2's from looping back to the computer. I cleaned them up, put in the dielectric grease and the problem went away. I use a moates quarterhorse to tune the engine. When you programmed the computer, did you change the variable for injector size to 24 lbs.?

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