Question about 1992 Buick Century
I GOT THIS CAR FROM A FRIEND AND IT WAS IN A GARAGE FOR A LONG TIME. I FIXED BRAKES, CATALYTIC CONVERTER, TUNE UP,OIL CHANGE, AND I HAD A READING OF 131 AND IT NEEDED TO BE 100 THEN THE MECHANIC PUT IN SOME SORT OF TREATMENT IN THE GAS AND I FOLLOWED THE DIRECTIONS TO FILL IT UP AND DRIVE IT TILL ALMOST EMPTY THEN FILL UP AGAIN THEN GO TO INSPECTION. EMISSIONS READING WAS 432 NOW AND THE STATE HAS INCREASED THE NUMBER TO 220 TO PASS. I DO NOT UNDERSTAND WHAT IS WRONG ! HELP????
Most likely its your EGR valve Find it take it off clean it with a cheep metal brush, get a coat hanger and clean the ports in the manifold.
Posted on Jul 11, 2009
What numbers is this No2?Ho2,Co?anyway check for any vacuum leaks,has he clean out the throttle body , test the O2 censer .
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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