Re: cold start problem - interim report

[Mike Posner <posne@cts.com>]

Jeff:  The diagnostic decision trees found in Bentley are helpful
in  sorting  this out.  By your questions you look to be heading in the
right direction. I would expect leaky injector(s)  to be high on the list
because  I had these symptoms and  Injectors were
replaced under emissions  warranty.  A fuel pressure guage and
proper adapters  are helpful to narrow the possibilities.  You might also
feel your plugs soon after this starting/stumbling ritual to
see which are warm or cold. Pull the cold ones and look for gas.
You can pull  the suspected injector and test it for leakage .  Again,  A
trouble shooting  approach per   Bosch or Bentley
saves alot of  guessing  , and  unnecessary  R&R  of expensive parts.
Mike Posner.












At 05:16 PM 4/3/99 -0500, Fourkguy@aol.com wrote:
>86 4KCSQ - constant stall at start up until finally holds ignition.
>
>What I've done so far:
>
>Repair fuel line leak caused by corrosion.
>Replace Coolant Temp Sensor.
>Replace all plugs with Bosch Platinum +4 4 electrode plugs
>Replace cap & rotor
>Check for vacuum leaks.
>
>Current status:
>
>Much improved. Car starts on first try but stumbles until warm. This happens 
>hot or cold when the car has been off for more than 1/2 hour.
>Could it be : Leaky injector?
>               Fuel Pressure accumulator?
>               What else??
>
>Please point me in the right direction.
>
>Thanks,
>
>Jeff