Testing coils? PROBLEM SOLVED.
10-11-2007, 07:43 PM
#1
Rennlist Member
Thread Starter
Testing coils? PROBLEM SOLVED.
been asking this question and have not had a response. searched the forums as well.
is there a way to check the coils for the spark plugs?
anybody know what plug lead resistance should be?
thanks for any insight.
is there a way to check the coils for the spark plugs?
anybody know what plug lead resistance should be?
thanks for any insight.
Last edited by SPIKES; 10-13-2007 at 02:39 PM.
10-12-2007, 06:45 PM
#4
Rennlist Member
Thread Starter
10-12-2007, 06:58 PM
#5
Rennlist Member
Plug wire resistance should be about 3kOhm end to end
Not sure of a good coil test for these cars but there are loads of threads on problems in the area it sounds like you are troubleshooting.
https://rennlist.com/forums/showthre...ferrerid=35947
By the way, what is the problem?
Not sure of a good coil test for these cars but there are loads of threads on problems in the area it sounds like you are troubleshooting.
https://rennlist.com/forums/showthre...ferrerid=35947
By the way, what is the problem?
10-12-2007, 07:18 PM
#6
Rennlist Member
Thread Starter
thanks marknew plugs/rotors/dist caps...clean isv...no vacuum leaks...
car idles at 800 but seems to "rock"
when i checked the coils it seems to splutter on one coil while other is smooth.
belt is fine....i want to test it so i can eliminate the coils.
car runs and power delivery is fine.
10-12-2007, 07:25 PM
#7
Rennlist Member
Did the problem start after you replaced parts or were they replaced in attempts to fix?
When did the problem begin? Anything worth noting when first noticed?
How many miles on the plug wires? (take a look at night, check for arching)
Firing order correct after caps replaced? (basic I know, but double check!)
When did the problem begin? Anything worth noting when first noticed?
How many miles on the plug wires? (take a look at night, check for arching)
Firing order correct after caps replaced? (basic I know, but double check!)
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10-12-2007, 07:49 PM
#8
Rennlist Member
Thread Starter
Did the problem start after you replaced parts or were they replaced in attempts to fix? ATTEMPTED TO FIX PLUS CAR NEEDED 30K SERVICE
When did the problem begin? Anything worth noting when first noticed?
How many miles on the plug wires? (take a look at night, check for arching) 29K
Firing order correct after caps replaced? (basic I know, but double check!) GOOD POINT....I AM CHECKING THAT NEXT
When did the problem begin? Anything worth noting when first noticed?
How many miles on the plug wires? (take a look at night, check for arching) 29K
Firing order correct after caps replaced? (basic I know, but double check!) GOOD POINT....I AM CHECKING THAT NEXT
thanks
10-12-2007, 07:55 PM
#9
Rennlist Member
If it 'sputters' on one coil and not on the other, switch the coil to dist leads to see if the sputter stays with the coil ... or the dist. head. If the latter, it could be a rotor or cap - if the former, either a coil wire or coil.
I'd have to check, but think that the coil primary leads can also be switched, to repeat the cycle.
Saying this presumes that all these tests are for running on 1 coil, 6 plugs - if I grasp what you were doing.
I'd have to check, but think that the coil primary leads can also be switched, to repeat the cycle.
Saying this presumes that all these tests are for running on 1 coil, 6 plugs - if I grasp what you were doing.
10-12-2007, 09:08 PM
#10
I'd be curious to know some troubleshooting guidelines for the coils as well. I bought my car a few months ago with 84K on the odo and this is one of those things that I'd like check, just for peace of mind.
10-12-2007, 09:16 PM
#11
Rennlist Member
Thread Starter
If it 'sputters' on one coil and not on the other, switch the coil to dist leads to see if the sputter stays with the coil ... or the dist. head. If the latter, it could be a rotor or cap - if the former, either a coil wire or coil.
I'd have to check, but think that the coil primary leads can also be switched, to repeat the cycle.
Saying this presumes that all these tests are for running on 1 coil, 6 plugs - if I grasp what you were doing.
I'd have to check, but think that the coil primary leads can also be switched, to repeat the cycle.
Saying this presumes that all these tests are for running on 1 coil, 6 plugs - if I grasp what you were doing.
thanks...i will try it.
noah.....i am sure there has to be some reliable "test" to check the coils.
10-13-2007, 02:35 PM
#12
Rennlist Member
Thread Starter
thanks markd and garths for helping........
i started checking the coils again today and found that both coils are good on secondary rotor but bad on the primary...car splutters badly on it.
i double checked the firing order and tdc and then checked the firing order AGAIN and found 2 plug wires were switched
i am so relieved and feel a bit stupid by not finding this sooner....
anyway thanks for your efforts.
i started checking the coils again today and found that both coils are good on secondary rotor but bad on the primary...car splutters badly on it.
i double checked the firing order and tdc and then checked the firing order AGAIN and found 2 plug wires were switched
i am so relieved and feel a bit stupid by not finding this sooner....
anyway thanks for your efforts.
