New 308 Owner questions - Ferrari Life
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post #1 of 5 Old 11-30-2006, 10:33 PM Thread Starter
Join Date: Nov 2006
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New 308 Owner questions

Hello, I am new to the forum. I recently purchased a 1980 308GTSi and I love it!!! Man, what an experience!!! I have a few questions for my fellow members. I'm sorry if these have been asked and answered. I did a search but couldn't quite find the exact answer I was looking for.

The slow down light for cylinders 1-4 stays on all of the time from the minute the car is started until I turn it off. I removed the passenger kick panel and reversed the plugs for the two ceramic looking modules and then the 5-8 slow down light had the same symptoms. Does this mean the ceramic module needs to be replaces or the thermo-couplers in the cats/exhaust are bad?

My car has the original metric rims and tires on it and I recently purchased a set of original Speedline 16x8 and 16x7 rims from a 1990 Mondial T. From the research I've been doing, it sounds like these rims will not work on my car. Is this true? does anyone have any recommendations? I didn't want to have to start dealing with various adapters, spacers, etc. to make these rims work. From my research, it sounds like a lot of owners recommend the QV 16X8 and 16X7 rims. I was trying to stay with as much of a stock look as possible and not necessarily get into the larger 18 and 19 inch rims, etc.

If the Mondial T rims I purchased will not work, is there an area where members can post classifieds?

I really appreciate any advice/help any of you can provide.

thanks in advance for your reply.

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post #2 of 5 Old 12-03-2006, 03:05 PM
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Join Date: Nov 2003
Location: Phoenix, Arizona
Ferrari Life Posts: 366
Slow Down Light

The thermocouples in the converters go bad all the time. Unfortunately, you can't just disconnect them - the light stays on all the time. I believe they cost about $150 each, sounds like you need one. You can look at some of my other posts to see more detail on this problem. Good luck and, have fun with your new toy. -Steve
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post #3 of 5 Old 12-03-2006, 07:28 PM Thread Starter
Join Date: Nov 2006
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Thanks for the reply. I will take a look at the TC and determine if one of them is bad. I will also take a look at the digiplex units and make sure they are good. Thanks again.
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post #4 of 5 Old 12-04-2006, 03:06 PM
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Join Date: Dec 2006
Location: Boston area
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Swap the wires coming from the thermocouples to the other ECU to determine if the error follows the ECU or the thermocouple. They are the wires NOT on a connector but under two screws. Often the issue is the ECU. Had one go on my Mondial last year.

As for the wheels, no they will not work unless you get spacers for them. Mondial hubs have a larger offset than 308 hubs. The wheels will be too far in the wheelwells and will rub, not to mention look silly!

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post #5 of 5 Old 12-06-2006, 10:41 PM Thread Starter
Join Date: Nov 2006
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Thanks for the advice Birdman, I will reverse the wires between the two TCs and see what happens. As for the wheels, i am going to post them up on ebay since the offset appears to be way too excessive to deal with. Thanks again.
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