Re: 02 Viggen intermittent no spark... - Saabnet.com Bulletin Board


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Re: 02 Viggen intermittent no spark...
Posted by Justin VanAbrahams [Email] (more from Justin VanAbrahams) on Thu, 31 May 2018 15:04:11

In Reply to: 02 Viggen intermittent no spark..., ryane, Thu, 31 May 2018 09:26:29
Alert me when someone posts in this thread:

Turning the key to RUN causes the pump to prime, but nothing further
Turning the key the START runs the starter
When the ECM gets a signal from the CPS it starts the pump, pulses the injectors, and fires the ignition

You really need to drill down and be sure of what's happening... be sure you have spark, be sure you have an ignition signal from the ECM, be sure you have injectors pulsing.

A no start could be a fuel problem or an ignition problem so you gotta know for certain which of those is off.

If the DIC is anything other that a real Saab/SEM part, it's absolutely suspect, but it's not the for-sure problem.


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