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Location: Sin City
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ignition coil testing procedure
Digging into the non-starting 83 944 I have inherited...I have its coil and another spare coil. Resistance across the terminals of each is right at zero on the ol' multimeter. I understand that there should be about 5 ohms of resistance in the coil. Is there a better way to test it?
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2018 911 Carrera coupe 1972 911T targa |
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08-29-2004, 06:53 AM
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FR -
Already did that - fuel pump is functional...looking at ignition now...
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2018 911 Carrera coupe 1972 911T targa |
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08-29-2004, 05:01 PM
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Do you have 12 volts at the coil with the key on? If not it's the ignition switch.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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08-29-2004, 06:16 PM
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Coil was probably bad. Started right up after swapping in the spare coil. Runs a hair rough and the idle needs to be set higher or the idle regulator looked at, but it "driveway drives"...Phase I of the saga thus endeth...thanks for the suggestions, guys; let's see what else she throws at me, as it's always fun breaking in a new acquisition...regards Al
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2018 911 Carrera coupe 1972 911T targa |
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08-29-2004, 09:53 PM
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How are the belts? The timing and balance belts that are behind the black plastic cover. If you don't know you had better change them before you go any further.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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08-30-2004, 06:11 PM
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Location: Indianapolis, IN
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I know a guy that has the equipment to test that coil, he builds racing ignitions pm me for the address
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1985/late 944 |
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08-30-2004, 07:07 PM
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I'm doing what is for me the standard stuff on getting a new 944 without irrefutable maintenance documents (this is about my 20th such orphan) - replacing everything on the front of the engine from the block forward (water pump, belts, rollers, seals, t-stat, etc). Cheapest insurance you can buy on these cars...I have fortunately never had one with an ignition problem until now, and this turned out to be a realtively easy fix...and I indeed set the idle with the screw already as well, and the bad coil has been replaced, but thanks for the help guys...
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2018 911 Carrera coupe 1972 911T targa |
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09-01-2004, 07:50 AM
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1983 Porsche 944 2.5 liter
