gtoden1

I have a 93 LS400, does anyone know the part number for the Coil Packs?

And who might have them?

Thanks for the help.

trukn1

Have dealt with these guys a few times for parts.
http://www.trademotion.com/partlocat...93&catalogid=1

You can also contact Carson Lexus, one of our vendors here and they will be of service.

deanshark

You can also try; http://www.rockauto.com/catalog/raframecatalog.php I get all my parts here, never had a problem. Also, if you wanted to, the junkyards charge about $20 for a coil but you don't know exactly what you're getting.
Did you test the coils to see if they're in spec? Here's the specs and how to test them;
Primary coil resistence;
Cold 0.36 - 0.55 Ohms
Hot 0.45 - 0.65 Ohms
Secondary coil resistence;
Cold 9.0 - 15.4 Ohms
Hot 11.4 - 18.1 Ohms
http://airtexenginemanagement.com/pdf/W15.pdf

gtoden1

Well I've been working on different things with this car all day so must be I'm just tired, can someone tell me where the 2nd coil is? I thought it was near the battery.

Thanks:

deanshark

Drivers side coil is directly below the timing cover down near the A/C compressor.

trukn1

Did they move it from 92-93?? Isn't the a/c compressor on the passenger side? One coil is directly on top of the motor towards the top coolant hose. The other is on the driver side on the lower side of the engine. Will most likely need to remove battery and tray (for larger handed persons like me) to get full access.

deanshark

No the A/C compressor is down near the coil on the drivers side. It's crazy how they moved everything around from year to year. Everything was fine where it was. It's a tight fit in there. I got mine out with the battery in (my hands are huge) but it would be more of a direct angle, and easier, with it out.

gtoden1

Went an bought a meter today, checked the ignition coil on the top, got readings of 00.6 on using the 200 which is the first test, then on the second got 12.5 using the 200k on the meter.

On the other ignition coil near the battery I got 00.6 using the 200 on the meter and 13.9 using the 200k.

So am looking at replacing both of the ignition coils I guess. Does this sound right?

deanshark

Did you check them 2 or 3 times to make sure? When you check the primary it's .05 over spec for cold but that would be in spec for hot. Did you drive the car before you tested, making them hot? I've never seen both coils going out at the same time, but it's an LS so anything is possible.

gtoden1

Yes, check a dozen times, car was hot. So I'm wondering if its something else. Also hoping I did it right with the new meter.

deanshark

Try checking when it's cold, like first thing in the morning. One of my other cars (Grand Prix) I picked up a coil at the local parts store, tried it out, it didn't fix it so I returned it. I knew the guy at the store so it wasn't a problem. Some stores don't take back electrical parts. Maybe you can try that if they would return it.

gtoden1

Thanks Dean, I'll give that a try.

vaughn37

for anyone on a budget there is a OEM brand coil on Amazon for 22.75 eligible for free shipping
they only have 1 left. make sure it fits your car.just thought I would pass this along

http://www.amazon.com/OEM-5062-Ignit...715275&sr=8-26

SkulCracka

LMAO it still to this day says only one left.