Wen you start the engine when old or when you accelerate hard, get someone to look at the back of the exhaust to see if there are blue smokes coming out or not.
If you see smokes coming out, then you know engine is consuming quite a lot of oil because of cracked piston rings.etc. then you can either rebuild engine or get another one. If you don't see any smoke coming out, then it should be fine. because the motor is quite old, and it will consume some oil overtime. Either way, try using a thicker oil, it will reduce oil consumption. like 20W-50 or above.
Did you also change out the ECU from the donor car? If not, that may be the problem.
The most common problem, when a 1990 Geo tracker floods out with gas, is a bad fuel injector. The injector might be leaking or injecting a steady stream of fuel
The door switches may need adjustment, or they might be broken. A short in the wiring somewhere might also be causing the problem.
1990
*you might have a problem in the steering column *you may need to replace the flasher fuse in your fuse box.
take it apart and look for the problem. depending on whats broken you might be able to fix it but you might also need to troubleshoot it, it could be the computer not sending info to the speedometer.
You might have an ABS problem or a problem with the brake master cylinder. Check the fluid level in the brake reservoir.
The New Adventures of He-Man - 1990 The Taking of Levitan - 1.55 was released on: USA: 1991
Taking Care of Business was created on 1990-08-17.
1990
either a cracked head or a blown head gasket.
Problem Child - film - was created on 1990-07-27.