My car has failed the emissions test multiple times. What can be causing this?
by 
Carlos Ramirez
ANSWERS: 6
-
The cause for this is related to the upkeep of the car. If the rings in the engine are bad or the cylinders are scored, then your emissions will have too much organics leading to poor emmisions control.
-
To accurately answer your question I need to know the exact emissions test results. There are too many variables, with the amount of gasses the vehicle is producing I can give a detailed answer/explanation.
-
You car could have failed for multiple reasons. The first thing you should look into is the cat system and make sure your obd rating on the cat is the same for your car. If you have a 96 model or later your cat converter is an obd2 model 95 and lower is obd1. If you didnt cahnge the exhaust system then that shoudlnt be the problem. Check your engine to make sure your Gaskets, rings and cylenders are not scored.
-
Car has failed several times on CO level the Cat has been changed, Oxi sensors, temp sensor, rear exhaust spark plugs changed air and oil filters
-
Hi I had this problem with my 1998 Toyota. I installed a product called Microlon and after about 100miles of running the emissions had fallen well into place for the MOT. Microlon UK are on 0844 7042000
-
I found out it was the EGR valve sticking, 1990 Pontiac
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC