Chrysler Repair: 2.5 V-6: Throttle adjustment?, distributer cap, chrysler cirrus


Question
QUESTION: my daughter has a 98 chrysler cirrus. check engine light is on. took to auto parts store they put it on the code reader and said that two cylinders werent working properly and that it could quite possibly be plugs and wires. replaced plugs and wires. still doing same. what else could i do to try and correct problem

ANSWER: Hi Ronald,
There are a great many possibilities of an engine 'miss'. I would next idle the engine for a few minutes, then remove the spark plugs on the front bank of the engine and see if they look the same or if one or two of them look 'wet'. The wet plug would be indicative that the fuel injector on that cylinder is faulty. The rear plugs require much more effort to remove so this would be a beginning look to see if there is evidence of that sort or a problem being the cause. Can you get another code readout and ask for the specific code numbers which will tell you which cylinders are missing so you can focus on those. If could also be a wiring problem to the affected injectors, for example.  Beyond that I can list all the possibilities but this would be the first place to start, doing it yourself. I assume this is a 2.5L V-6, correct?
Roland

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QUESTION: after closer look at the numbers on distributer cap it appears that the wires are not in order on the cap. if im right the firing order is 1,2,3 on front passenger side to drivers side and 4,5,6 back side passenger side to driver side..correct? and the number one wire from plug one should go to number one on cap right? and wire 2 to number 2 on cap and so forth...am i correct?
and yes is 2.5 v-6

ANSWER: The wire order shown on the cap is not the same as the firing order of the engine because of internal re-routing between the contacts in the cap and the sockets on the outside of it. If the wires to the plugs agree with the markings on the cap then nothing is wrong.
Roland

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QUESTION: appears misfiring is corrected. replaced rotor and dist. cap..however another issue exists..throttle is somehow out of adjustment now. the small adjuster screw seems to be in as far as it can go...what else could i do to adjust it

Answer
I don't know what you mean by the adjuster screw: the idle speed is not controllable by a screw but is rather regulated by the computer. You can clean the throat and butterfly plate and side air passageway of the throttle body, but the idle speed is controlled by the automatic idle speed device which regulates how much air is allowed through the side air (idle) passageway. You can clean out the passageway and remove the automatic idle speed 'motor' and clean its tip and the opening in the air passageway into which that tip extends, but other than that throttle is not adjustable as it was in the 'good ole days'.
Roland
PS Thanks for the rating and nomination