Explorer94XLT
Member
- Joined
- September 17, 2010
- Messages
- 11
- Reaction score
- 0
- City, State
- Fresno, CA
- Year, Model & Trim Level
- '94 XLT
I've been trying to pass emissions for a while now. Things I have recently replaced: thermostat, O2 sensors (4 wire type), spark plugs & wires, fuel filter, air filter, motor oil, and CAT. The cat was the direct fit (bolt on) model by Magnaflow.
Before I changed the CAT...
@ 15 MPH: HC 96 ppm (max 61); CO% 1.83 (max 0.43); NO ppm 29 (max 350)
@ 25 MPH: HC 90 ppm (max 61); CO% 1.99 (max 0.43); NO ppm 21 (max 350)
After I changed the CAT...
I don't have the exact numbers because the technician ran the test for free but essentially the results were pretty much exactly the same. I was watching the screen as the test was running.
This crap is discouraging but I'm not giving up. The vehicle seems to run great otherwise. It's a 2WD '94. It's got a 4.0 L engine and the odometer reads 180641.
I'm bummed out and at a loss for what to do.
Please help.
Before I changed the CAT...
@ 15 MPH: HC 96 ppm (max 61); CO% 1.83 (max 0.43); NO ppm 29 (max 350)
@ 25 MPH: HC 90 ppm (max 61); CO% 1.99 (max 0.43); NO ppm 21 (max 350)
After I changed the CAT...
I don't have the exact numbers because the technician ran the test for free but essentially the results were pretty much exactly the same. I was watching the screen as the test was running.
This crap is discouraging but I'm not giving up. The vehicle seems to run great otherwise. It's a 2WD '94. It's got a 4.0 L engine and the odometer reads 180641.
I'm bummed out and at a loss for what to do.
Please help.