1988 Chrysler Conquest AutomaticFACTORY OEM SERVICE PROCEDURE

Fuel Injection System - BOSCH LH-JETRONIC: Testing: Injectors

  1. Remove large plastic air intake pipe. Disconnect high tension cable from ignition coil. To check injector operation, look through air inlet of injection mixer with ignition switch in "ST" position. Unless injection is very poor, injector state should be considered normal. Turn ignition switch "OFF" and check for leaks.
  2. To check operation of other injector, disconnect connector from known good injector and install it on other injector. Ensure harness has adequate slack so engine torque will not damage harness. Check injector as outlined in step 1).
  3. Using an ohmmeter, check resistance between injector terminals. Standard resistance is 2-3 ohms at 68Β°F (20Β°C). If resistance is not to specification, replace injector.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.