Hi Guys, I am new on here because I have an issue with my Fathers 98 CRV which has just failed its MOT. Emissions failed at 9% and I changed the Cat and the Lamda sensor which improved things to 5% but still a fail. I would appreciate any advise as to what can cause over fueling on these cars. I checked the plugs and they are sooty but not wet so whatever it is causing things it seems to be a general overfueling issue rather than one injector leaking etc. any idea or suggestions would be most welcome.


Kind regards Chris

 

Hi I know it was along time ago but Did you ever solve this problem? My car just failed its test so I'm just starting on this journey..

 

What journey?

 

Hello there! You may have the same issue as I had. I had issues with the piston rings on Cyl. 5 on my 2007 Ridgeline in the last 2 months. Been a solid vehicle since I bought in 2007 (365,000 miles). The issue I had was it threw a code for a missfire on cyl. 5. Shop tried everything, valve adj. swapping injectors, coil packs, nothing seemed to work, UNTIL he did a leak down compression test. All cylinders were still solid, EXCEPT #5. 25 percent leak down.The compression rings were failing. Now, he should have done that as the first test on a "high risk/high mileage" vehicle. Would have saved me 2 k in trouble shooting this thing. I got my monies worth out of it tho, not worth swapping out the engine. Bought a 22CRV now. But it was a great truck.