How to adjust ignition timing on a Miata?
NOTE: Before adjusting ignition timing, warm engine to normal operating temperature. Turn off all accessories. Place transmission in Neutral (M/T) or Park (A/T). Ensure idle speed is correct. See IDLE SPEED under IDLE SPEED & MIXTURE. If timing is not within specification, loosen distributor or Crank Angle Sensor (CAS) lock bolt (Miata only).
What’s the minimum idle speed for a 1988 350?
For the car we are using (1988 350 AT), the minimum air or idle speed should be a 400 RPM. I highlighted the needle on the RPM gauge as well as marked what the goal for this vehicle should be at (400 RPM). If the speed is off, there is a torx screw on the side of the throttle body on the driver’s side.
Where do I find the minimum idle speed?
Remove the connector from the IAC valve (located below the TPS on the passenger side of the throttle body). Start engine. Check the RPM gauge for the proper idle speed setting (minimum air). This information can be obtained from Specifications, Tune Up Specs for any year you select.
How do you set the timing on a Honda Accord?
Turn the key ON and crank the engine. Using a feeler gauge to get close, adjust the points to the desired setting according to dwell readings and tighten the points. Crank it again to be sure the dwell angle is still correct. You can now go on to set your timing.
What should the ignition timing be on a Nissan?
Adjust to 10 degrees, nip the bolts up and check timing again to be sure. I also always use a lead between coil pack 1 and the plug on all nissan engines with a coil pack setup.
What should the ignition timing be at idle?
When I’m tuning with Nistune or Live tune the timing at idle shows 10 degrees (even on a stock tune 8 port Jap head and ECU). If set at 15 then you will be 5 degrees advanced through out the whole timming map. Not really ideal when you are on the edge of the engines limits.
What is the ignition timing on a Miata?
Timing advanced too far Advanced timing means that the spark which ignites the fuel mixture in the cylinder occurs before the piston reaches top dead center of its excursion. Factory spec for the Miata specifies standard timing as 10 before top dead center (10 BTDC) 1 at idle speed (850 rpm).
What should the idle RPM be on a Miata?
Factory spec for the Miata specifies standard timing as 10° before top dead center (10° BTDC) ±1° at idle speed(850 rpm). If your timing is advanced more than this, you may experience pinging under some conditions. Dirty spark plugs Metallic burr in cylinder