Location: Northern NJ
Posts: 8,583
My VIN: 10757 1st place Concourse 1998
Super (or Plus or Premium) is not necessary but you will notice sightly better gas mileage. Your high idle could just be looseness (play) in the throttle linkage. Try pushing the throttle arm all the way to idle and hitting the idle micro. If that does it you can adjust the quadrant link to push the throttle arm all the way to idle. Or it could be all of your adjustments are off and everything needs to be adjusted properly. Run a bottle of Techron fuel cleaner through a tank of gas to clean up the injectors. The water can also be the radiator or the hose leaking in the front left corner. Keep an eye on the coolant level.
David Teitelbaum
so 13 pages deep in this thread and still not one picture of your car since you took ownership?
Jeff
Posts: 129
Posts: 129
Can you guys tell me if a "STAGE II" engine requires premium or super gas? While this car doesn't have an official stage II it does have headers, CAM work upgraded exhaust etc.
For the few thousand miles I'll be driving her a year I don't mind the extra cost of the fuel, at some point I'll try a lower grade fuel amd see how she runs, thanks.
Location: Northern NJ
Posts: 8,583
My VIN: 10757 1st place Concourse 1998
If you hear knocking then you must either use a higher octane fuel or retard the timing. It will depend on the ambient temperature and how large the load, for instance, if you are going up a long hill on a hot day.
David Teitelbaum
Here's some help on adding photos when replying in a thread:
The photos will not show up full size and in-line like the screen grab above (which uses a different, more complicated process,)but they will be attached as a smaller "thumbnail" at the end of your post like this that people will need to click on to view full size:
AddingPhotosToReply.jpg
Last edited by Mark D; 04-05-2019 at 11:38 AM.
Posts: 129
Posts: 4,808
My VIN: 3937
Email them to me if you like and I'll post them.
[email protected]
Sept. 81, auto, black interior
Posts: 129