[s-cars] Troubleshoot a no start issue

[chris chambers]

Brooke,

did you check the fuse at the ECU?
If that goes bad it won't start.

If that's ok I'd check for spark, and I'd check and make sure
the plugs aren't fouled with gas.

HTH
Chris




--- Brooke Fairbanks <bfairbanks at fnbbarron.com> wrote:

> This is the synopsis of my no start struggles:
> 
>  
> 
> *        With a half tank of fuel and driving the 95 S6 w/ 129K
> miles, the
> engine hesitates/stumbles then dies.  It refires, but runs poorly
> then dies.
> 
> *        With the car towed back home, I swap the crank speed sensors
> from
> my other S6 and still a no start condition.
> 
> *         Compression is high of 135 and a low of 125 across the
> cylinders.
> 
> *         I verified that the speed sensor pin is still on the
> flywheel.
> 
> *        I swap out the old POS units with known to be working POS
> units and
> still a no start condition.
> 
> *        I swap out the old coils with a 034 ignition loom with 5 new
> 1.8t
> coils and still a no start condition.
> 
> *        I by-passed the fuel pump relay to check the fuel pump
> function and
> it appears to pump fine from the filter line (I did not measure the
> exact
> volume or measure from the fuel pressure regulator or the injectors) 
> I
> checked to make certain it was fuel, not fuel/water coming from the
> tank.
> 
> *        I spliced in a CPS and still a no start condition.
> 
> *        I replace the fuel filter, spark plugs, crank seal, cam
> seal, TB,
> serp belt, serp tensioner bearing, H2O pump, T-stat, triple checked
> the
> timing marks 
> 
> *        Replaced the fuel pressure regulator
> 
> *        Removed the fuel pump basket to clean the screen (very small
> amount
> of tiny debris) 
> 
> *        Replaced the fuel pump
> 
> *        Checked the fuel to the fuel rail (gobs of pressure spray)
> 
> *        The motor fires very intermittently but still does not start
> 
>  
> 
> Any other suggestions?
> 
>  
> 
> Thanks!
> 
>  
> 
> Brooke Fairbanks
> 
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