Recently had a fuel injection system tune-up done on my '77 280Z. The mechanic, Steve Ehler of Rising Sun Performance in Fort Worth, Texas, did a great job.
He changed the oil & filter, adjusted the valves and then hooked the beastie up to his tailpipe tester. He then proceeded to adjust the AFM, the throttle switch, and check out ad correct the outputs from the engine temperature sensor and thermotime switch. The good news is that there really is such a thing as a fuel injection system tune-up and it really improves the cars performance. The bad news is that he discovered that a previous mechanic had misadjusted the AFM and the throttle switch which set my car up to run rich and it has suffered irrevocable damage. Camshaft scoring, rings going bad, etc.
This type of tune-up requires an exhaust gas analyzer like the Nissan Shops and safety inspection boys use. Not something the average guy would have in the garage. Not having this done six years ago when I first got the car problably took 100,000 miles off the engines expected life. The cost of the work was about $250 and is worth every penny. Even though it has significant internal wear my car runs stronger than ever before.
Phantom
He changed the oil & filter, adjusted the valves and then hooked the beastie up to his tailpipe tester. He then proceeded to adjust the AFM, the throttle switch, and check out ad correct the outputs from the engine temperature sensor and thermotime switch. The good news is that there really is such a thing as a fuel injection system tune-up and it really improves the cars performance. The bad news is that he discovered that a previous mechanic had misadjusted the AFM and the throttle switch which set my car up to run rich and it has suffered irrevocable damage. Camshaft scoring, rings going bad, etc.
This type of tune-up requires an exhaust gas analyzer like the Nissan Shops and safety inspection boys use. Not something the average guy would have in the garage. Not having this done six years ago when I first got the car problably took 100,000 miles off the engines expected life. The cost of the work was about $250 and is worth every penny. Even though it has significant internal wear my car runs stronger than ever before.
Phantom