brave sir robin
Thread starter
I have been using Supertech knockoff Lucas fuel system cleaner for the last week. Come to think of it I have been using a double strength dose.........
I took apart the EGR system and it was free of any crud. The valve moves freely and holds vacuum....no leaks. I did notice that the brake booster vacuum hose was not fully seated on the booster and that MAY have caused a leak I guess.
Does anyone here know what would cause the NOX levels to be cut in half at the higher speed test? Should it not go up considering the limit is higher n all...... What does this signify?
I took apart the EGR system and it was free of any crud. The valve moves freely and holds vacuum....no leaks. I did notice that the brake booster vacuum hose was not fully seated on the booster and that MAY have caused a leak I guess.
Does anyone here know what would cause the NOX levels to be cut in half at the higher speed test? Should it not go up considering the limit is higher n all...... What does this signify?