This is exactly wha is happening to my zetec, as posted earlier.
I've done everything mentioned above as well as checking fuel pump pressure which is 38psi and 42 with rgulator d/c'd and exhaust gas flow testing to check for a restriction.
Next on my list to check is the MAF
AS for the gas mine runs fine on 89 with no issues
Last edited by LCX; 10/25/05 08:04 PM.