Re: Emissions Question
On Tue, 20 Sep 2005 12:09:11 -0400, PatLMac
>I just had the emissions tested on my 1988 Town Car. It passed every
>test well, except for the NO (nitrous oxide), which it failed
>miserably, with twice the allowable emissions. Anyone had this
>problem or know the possible causes??
>Any info would be appreciated.
Normally an EGR system problem. You need to have the ECM
scanned for any fault codes. Problem could be bad EGR
valve, EVP sensor, plugged tube, vacuum leak or other
problems. You also need to make sure the ignition timing is
correct. Some parts stores like Autozone will scan it for