Emissions Question 302 Engine
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Junior User
Joined: Jul 2002
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From: Puebla Mexico
Emissions Question 302 Engine
I just bought a F150 1992 5.0 L V8 302 Engine.
I changed Spark Plugs, Oil and Filters, runs smooth really smooth at Highway, but at Ralenti speed seems little unstable. I took it for Emissions test and HC PPM at ralenti speed are too high (1600 PPM)and at 2500 RPM emissions are really nice. This confirms what I see on driving.
Where do you think is trouble located? Timing adjust?
Thanks in Advance for any ideas
I changed Spark Plugs, Oil and Filters, runs smooth really smooth at Highway, but at Ralenti speed seems little unstable. I took it for Emissions test and HC PPM at ralenti speed are too high (1600 PPM)and at 2500 RPM emissions are really nice. This confirms what I see on driving.
Where do you think is trouble located? Timing adjust?
Thanks in Advance for any ideas
