The other nice thing about TBI is you can watch the injector working to help diagnos any fuel related problems. And compared to multiport imjection which is what they changed over to later changing the water pump is a breeze on yours. You really have the next best thing to carb and points system. A simple computer run system for efficiency and pollution control. Granted your location does not favor lack of knowledge or parts replacement. But you do have computer access to the world to study up if you care to. Some of it free.
When you get the old diaphragm back in and it's running again we can try to diagnose your original problem. I dont recall off hand where the MAP sensor is for that system which is the most influential sensor for fuel supply/mixture. I do have a book(crappy haynes) for this car so i'm looking it up. No luck so far. And they did make a carb version in 84. You missed it by 1 year! Although pollution controlled carbs aint much fun either.
Let's see, says fuel pressure is regulated at 39lbs. The injector is pulse TIME modulated having a fixed orifice. And dont forget the TPS. It's checkable with a multimeter as it functions like a rheostat. You can disconnect EGR to see if that's a problem. Just take off vacuum hose. Another good point is this engine has a fool proof timing chain that i've never heard of it going bad. The trans is old school and pretty reliable. I had 300,000 on 1 in a car i'm now using for parts for the 2 I have running. My boondocks junkyard(15m away) still has some of these cars!
Monday, January 10th, 2011 AT 5:51 PM