Base boost solved - unshielded plugwires ! - Saab 900 Bulletin Board - Saabnet.com
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Base boost solved - unshielded plugwires !
Posted by Anders Dk [Email] (more from Anders Dk) on Tue, 26 Jun 2001 17:58:09
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Been base-boosting for about 6 weeks.
After suspecting broken vacuum leaks, knock sensor, actual knocking, plug, faulty apc-box I ended up trying my friends original Bougicord Radiofrequency shielded plugwires. Went from base boost to kissing the red area ! - even hit fuel cutout when flooring pedal up a hill!
Apc-box must have picked up noise from 2 unoriginal unshielded wires installed by previous owner and interpreted it as knocking!
Knock sensor wire has shield but Saab sent out an improved one (supposedly better shield) due to similar noise problems.
So, base boosters check out your plug wires!
Anders
Denmark
'88 900 T 8v int.
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