When you get your new/used ECU, replace the - Saab 900 Bulletin Board - Saabnet.com
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system relay and the fuel pump relays. Available from many of the site sponsors for around $12 each. As Townsend says, it's cheap insurance.
From Townsend Imports:
"If you replace the ECU, replace both the system and main relays at the same time. They have protection circuits in them to keep spikes off the ECU. It is these spikes that eats the ECUs. The added cost is little compared to the ECU. Also be very careful about the battery. Jump starting is a no-no unless unavoidable. Best thing to do is get another battery, or remove the battery from the car for charging. Spikes induced from jump starting or charging commonly take out the ECUs. Again, it might be less convenient, but it will be cheaper than toasting the ECU again."
posted by 66.255.93...
http://216.78.172.244/engine_folder/nostart24.htm
Posts in this Thread:
- Question about '90 ECU, Chad, Wed, 4 Dec 2002 14:39:13
- When you get your new/used ECU, replace the, RS
, Thu, 5 Dec 2002 10:43:00 <-- Viewing This Message - Re: Question about '90 ECU, Chad, Thu, 5 Dec 2002 00:58:29
- cheaper to get a used one -->, gorper, Wed, 4 Dec 2002 20:33:05
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