Clogged catalytic? Ford Escape v6 2004

[Sr20gti]

It's 2004 v6 escape. New spark plugs, new EGR. New Coils.. 2 new catalytics the middle one and i can't remember what cat else was replaced. I'm full throttle in the video


https://vimeo.com/314906308


Disconnected the o2 sensor and car ran way better. Then alot of stuff was coming out of the o2 hole. Gonna open up the exhaust and take the gunk out.

Edited by Sr20gti on Saturday 2nd February 16:03

[GreenV8S]

If that's full throttle at idle out of gear, there's something substantially wrong and these days I'd expect to see fault codes to steer you towards the problem. I've seen similar symptoms from a faulty load sensor but it seems pointless to guess until you see what faults the ECU is reporting.

[Sr20gti]

GreenV8S said:

If that's full throttle at idle out of gear, there's something substantially wrong and these days I'd expect to see fault codes to steer you towards the problem. I've seen similar symptoms from a faulty load sensor but it seems pointless to guess until you see what faults the ECU is reporting.

I had code 2195 and 2197. Stuck lean Bank 1 sensor 1 bank 2 sensor 1

[GreenV8S]

That supports the theory that it's running massively lean. Possible causes include a bad sensor, or low fuel pressure. If you have access to a fuel pressure gauge you could check that easily enough. To check the sensors you could either check the voltages at the sensor and continuity back to the ECO or (better) get a scan tool on the ECU and read the pids for throttle position and map/maf and see if they match your throttle inputs.

[Elliot2000]

Haven’t listened to the video, but if it’s struggling to accelerate, and it’s saying it’s running lean, on both banks?, then that would suggest a massive air leak somewhere. Can u disconnect the air mass meter and see how it runs then?

[Sr20gti]

GreenV8S said:

That supports the theory that it's running massively lean. Possible causes include a bad sensor, or low fuel pressure. If you have access to a fuel pressure gauge you could check that easily enough. To check the sensors you could either check the voltages at the sensor and continuity back to the ECO or (better) get a scan tool on the ECU and read the pids for throttle position and map/maf and see if they match your throttle inputs.

Fuel pressure was good. Map/maf good. I've noticed that the exhaust push from tailpipe is low. I used to have blown EGR valve.

[Sr20gti]

Elliot2000 said:

Haven’t listened to the video, but if it’s struggling to accelerate, and it’s saying it’s running lean, on both banks?, then that would suggest a massive air leak somewhere. Can u disconnect the air mass meter and see how it runs then?

I used to have blown EGR which caused huge air leak. I did and it ran worse.