2000 Isuzu Trooper possible misfiring

3 messages, Last post on Dec 26, 2008 at 4:40 PM

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What is this discussion about? Isuzu Trooper, Isuzu Trooper II, Engine, SUV

#2 of 3 Misfiring? by dragonroly Jan 09, 2008 (9:20 pm)
Hello,, I had a check engine light on my 2000 isuzu trooper where the code fault mark the EGR valve that i replace fixing the fault. Now, 3 weeks later is stalling when stop and or in "park". While running and normal speed works fine but the check engine light flashes on and off .The code marked is PO405 and PO300. Could this be another faulty sensor or does the coil or Spark Plugs needs to be change? Replies to this message: brentb1 (Dec 26, 2008 4:40 pm)
#3 of 3 Re: Misfiring? [dragonroly] by brentb1 Dec 26, 2008 (4:40 pm)
Replying to: dragonroly (Jan 09, 2008 9:20 pm) check your intake manifold gaskets.when the vehicle is cold start it up and spray brake clean,carb.clean all around the intake manifold gaskets and see if the rpm,s rev high.if so there leaking.they will cause the complaint your describing.let me know what you find.gl.