Re: Crazy idea...

Posted by HH56 On 2011/12/4 16:24:25

It wasn't an air pump but was for the nitrogen oxides. Don't remember all the details but the main piece was a small module a few inches square that had a second vacuum connection as well as having the existing vacuum advance connection go thru it. Also had an electrical connection. All I remember is it changed the timing with the results mentioned. Once it was taken off and car was back to normal.

No EGR on that car that I remember although I did have a Mazda pickup and the blasted valve would stick partially open causing it to run like crap with the check engine light on.