Idle issues - duratac
Well - I've been getting a slight rough idle in and out lately. I took a 250 mile trip over the weekend - this morning, after I came back - as it was idling, the check engine light was going on and off. When I put it in drive - it went off.
I now work at a local auto parts house - I used our scanner and it showed a p0171 code (system adaptive fuel too lean bank 1) and a p0303 code - cylinder misfire #3 -
The one thing that was common between both of them is plenum gaskets. I've known I've been needing to replace them. Now, the light is on all the time.
Would that cause my issues? Also - I tested the fuel pressure. roughly 30 at idle - on the rev, about 35 - that seems low to me. The filter *may* have been changed once in 223,000+ miles. I had the fuel pump changed 90,000 miles or so ago - it wouldn't surprise me to find out if the mechanic didn't replace the filter.
My thinking is - do the plenum gaskets (hopefully, that's not hard) and change the filter - then, re-test the fuel pressure.
2000 Taurus SEL
Member: VAST right-wing conspiracy.