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Re: 1986 Fuel Injector Problem Posted by RS [Email] ![]() ![]() ![]() In Reply to: 1986 Fuel Injector Problem, Rich, Fri, 11 Jan 2002 14:20:39 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Steady ceck engine light is often the result of a marginal (or just plain bad) O2 sensor or a bum Air Mass Meter.
If you don't know the maintenance history of the car, do a complete service on it:
I think the place to start is a full tune-up, including new Bougicord or Magnecore spark plug wires. (This is important because most other off-the-shelf wires don't have shielding to prevent EMI interference with the knock sensor.)
Change the air filter.
Then replace all vacuum hoses and the rubber bushings that hold the vacuum nipples into the intake manifold and valve cover. You can get some significant drivability problems if the vacuum hose between the throttle body and the fuel pressure regulator is bad.
Check to be sure that the boots that connect the turbo induction ducts don't have any cracks and have well-tightened hose clamps.
Check the turbo bypass valve by seeing whether the vacuum line to it holds a vaccum. A ruptured diaphragm in the TBV (aka Hooter valve), causes stalling under closed throttle deceleration ... not to mention an air leak past the throttle plate.
Replace the fuel filter.
Then, if you still have drivability problems, it's time to look at the Air Mass Meter and the Fuel Pressure Regulator. Repost and we can guide you through those things.
posted by 205.218.12...
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