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  1. J

    '90 Xj Renix - No injector pulse. Faulty ECM Confirmation ?

    Hi everyone, I'm stumped on starting a 1990 renix 4.0. I bought it like that, previous owner said it was harder and harder to start it until it wouldn't start anymore. The injector are not firing, there is spark, it runs perfectly when sprayed on ether. What have been checked : Fuel...
  2. J

    Code 27 Intermittent hesitations, power loss, stall

    Hi everyone, I own a 93 xj with the 4.0 h.o. and for a few month its been having some intermittent power loss after crossing rivers, water puddles or washing the car underneath. After a few minutes after running into water, The car wants to die and when I hit the gas at some point it'll kick...
  3. J

    Not reaching 195-210F - Not thermostat...

    Hi everyone, I've been browsing a lot regarding my "problem" on a 93 xj 4.0 HO. It doesn't reach normal operating temp (195 to 210F). It stays right above or below the 160F mark on the dash (70 deg C). When the engine reach this temperature, the upper radiator hose start to have some hot...
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