jacckk
Active Member
- Posts
- 321
- Location
- Durham, UK
I took my 1995 4.0 for it's MOT yesterday and at the time it was running on petrol, the tester has obviously noticed the LPG system and performed an LPG test which means it's the non CAT test.
Since it was the non CAT test even though it was running on petrol at the time. The results though wouldn't have passed on the normal petrol test so I want to try and fix that.
CO: (Limits <= 3.5%) (Value 0.771%)
HC: (Limits 1200 ppm) (Value 891ppm)
For a normal CAT test the limits would be <= 0.200% CO, and <=200ppm for the HC.
Apparently from my friend who was driving behind it a while ago the car stinks under hard acceleration, I know it's an old car (and an even older engine design) but surely it shouldn't be noticeable?
I've checked the MAF sensor and that is outputting the correct voltage as per RAVE, lambdas seem to be OK when looking at them using the LPG software. So what else should I check?
Thanks
Since it was the non CAT test even though it was running on petrol at the time. The results though wouldn't have passed on the normal petrol test so I want to try and fix that.
CO: (Limits <= 3.5%) (Value 0.771%)
HC: (Limits 1200 ppm) (Value 891ppm)
For a normal CAT test the limits would be <= 0.200% CO, and <=200ppm for the HC.
Apparently from my friend who was driving behind it a while ago the car stinks under hard acceleration, I know it's an old car (and an even older engine design) but surely it shouldn't be noticeable?
I've checked the MAF sensor and that is outputting the correct voltage as per RAVE, lambdas seem to be OK when looking at them using the LPG software. So what else should I check?
Thanks