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Coil Pack Resistance Testing
Posted 04 March 2004 - 09:15 AM
Spark plug post 1-2........ 2 Ohms
Spark Plug post 3-4........ 2 Ohms
Harness Post 1-2........19 Kilo Ohms
Harness Post 2-3........19 Kilo Ohms
These #'s are WAY off what the chiltons says. What should they be? Is the thing toast? Or is my cheap-o multi meter junk?
I'm thinking the IAC may be the culprit, as it died at idle - perhaps time for a cleaning - anything else I should check?
Posted 08 March 2004 - 10:46 AM
Posted 08 March 2004 - 01:03 PM
If the coil pack isn't working right, it can cause a lot of problems.
You can try to get a used one......I got my diamond for like 50 bucks, subaruparts or 1stsubaru should be around that price.
Posted 08 March 2004 - 03:26 PM
Posted 08 March 2004 - 07:07 PM
Don't think a fuel pump would set off a CEL. Really not sure what the problem is....check the code and report back.
Posted 08 March 2004 - 11:14 PM
Posted 09 March 2004 - 09:20 AM
Posted 09 March 2004 - 01:04 PM
Posted 09 March 2004 - 02:35 PM
The meter readings you took on the coil look encouraging to me due to the fact that both sides agree in the readings. Depending on the type of meter design and circuit you are measuring the readings can vary some. Shorting your meter probe leads and checking the ohm reading will tell you how much from your test reading you will have to subtract to get the actual resistance of the circuit if you really need to know the actual value of small resistance measurements. The main thing again, is that both side agreed.
It sounds like you do have an intermitant CPS and I don't know any info on TSB's for this. Also, I'm not sure what side is bank one but I think it is the passenger side. Can someone verify that?
Posted 09 March 2004 - 02:46 PM
anyway the code was cam position sensor, bank 1
That's strange : there is only one cam sensor and it's on the driver's side cam. The fault code I know that would mention something like bank 1 (upstream) and 2 (downstream from the cat) is the one for the O2 sensors.
Just a tought.
Posted 09 March 2004 - 03:31 PM
Can you tell us if cylinders 1 an 3 are on the passenger side of the engine?
Posted 09 March 2004 - 04:14 PM
This says +- 20% on the terminals and +-10% on the harness, so my 2ohm reading should be a maximum of 0.759 ohms, leading me to think that the coil should be replaced.
The cylinders are arranged
So yes 1-3 are on the pass side.
The best price I can find on the coil is 75 bucks from 1stsubaruparts - anyone else find better?
Posted 09 March 2004 - 04:55 PM
Thanks for explination on the cylinder locations.
Posted 09 March 2004 - 05:22 PM
Posted 09 March 2004 - 08:34 PM
Your welcome for the help.
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