take a 10mm socket/wrench and undo the battery for about 10mins and then turn the car to on and when the TB stops making noise, you can start the car. This should undo some/all of the changes made by running low octane gas. Running it for awhile will cure the rest if not done by resetting the ecu

 

Thats what you think.

 

cool thanks, i'll disconnect the battery while taking out the spark plugs. What #s should i be looking for for cylinder compression?

 

150-200psi with no more than10% between the max and min. The closer together and the higher the better. This must be done on a warm engine also

 

Compression check results. Igot 142 psi on the 3 back cylinders and 146 on the front cylinder. All the cylindersare on the low side, according toyour 150-200 psi range,but all are at least evenly worn. I noticed there was no DIY, so - soI took some pics, and if anyone wants, i'll post a diy ona compression check later. This shouldget put in the DIY forum, right.

Resetting the ECU might have seemed to give the cara bitmore power with the 93 octane.i drove it hard, and itran good. it's hard to tell though...thanks