#72035, "Coil pack Testing... hesitation problems may be related..."
I have been experiencing hessitation misfire problems at low rpms for awhile now... seems to be common on the 95's i think for my case i may have narrowed it down to maybe the coil pack being bad..
i did a test on mine the other day.. using the testing diagnosis found in the chilton's manual.
for the primary coil resistance at the three pins i got .8 ohms for both sides of the coil.. the chiltons says the specs should be between .51 and .61ohms and if its not to replace it.. i dont have alot of experience in this area of electronic ignition stuff so im not sure if .8ohms is that bad or not..
i then tested the coil towers.. and got like 12.4kilo-ohms.. and it said the specs for those were between 11.3 and 13.5 so i guess those are good..
#72064, "RE: Coil pack Testing... hesitation problems may be related..." In response to Reply # 0
i might be talking out of my ass here so someone correct me if im wrong but when using those small ohm values you also need to account for the inherent resistence between the testors...meaning...touch the leads together...get that value...and whatever you get testing the contacts subtract that inherent value...that should give a more accurate value...for instance...my leads have .5 ohms resistance alone so values between 1.01 and 1.11 would be good readings for me...again...someone reinforce what ive said please
#72115, "RE: Coil pack Testing... hesitation problems may be related..." In response to Reply # 3
the ignition system is very sensative to tiny changes in resistance. i would reccomend borrowing a coil pack if at all posssible, just to check and see if thats the problem (it only takes 10 mins to swap them out).
BTW, theres absolutly no reason to buy anything other than the stock coil for our cars. buy the cheapest one you can.
#72163, "RE: Coil pack Testing... hesitation problems may be related..." In response to Reply # 3
Originally posted by Blizare I too am wondering about this before I go out and spend 140 on a MSD Coilpack. Can you explain how you tested it? You had the plug wire connected?
i did it according to how it was specified in the chiltons manual. It said to disconnect the connector to the coil pack.. and there will be 3 pins.. the middle will be the batter voltage.. and the ones one the outside will be the coils.. so you test resitance between the batter voltage pin and the coil.. such as 1 and 2 and 2 and 3.. you test those with OHMS.. and then you go to the coil pack towers... and then test the resistance on them.. such as the rear two towers and front two towers.. i believe its 1 and 4 and 2 and 3 (the numbers on the towers representing the cylinder that it fires.. also be sure to remove the spark plug wires too.
#72182, "RE: Coil pack Testing... hesitation problems may be related..." In response to Reply # 6
im hoping to get a spare off Dino this weekend so i can test and confirm if mine is bad and what his old one reads... so i guess ill know by this weekend.
#72316, "RE: Coil pack Testing... hesitation problems may be related..." In response to Reply # 3
Originally posted by Blizare I too am wondering about this before I go out and spend 140 on a MSD Coilpack. Can you explain how you tested it? You had the plug wire connected?
You can get an MSD from Summit for around $69-ish. I have been having the hesitation problems at low rpm and during light throttle cruising. IRRITATING.
What I did was change out my stock coil for an MSD. Turns out that didnt work either. The connector from my harness to the coil did not fit tightly like it used to. As a result I cut it off and put on a connector from my 97 and the stock coil from the 97. Didnt seem to cure the problem.
Changed plugs, wires, coil, connector etc and it still hesitates.
BTW I have a new MSD coil for a 95-96 ( round pin ) laying around if anyone needs one. DONT REPLY IN THIS THREAD, PM me with an offer.
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