7A excessive cranking upon start up

[Christopher Gharibo]

What's the best method to find vacuum leaks? I cant locate a vacuum leak. 

The injectors are relatively new.

I have the Pierburg fuel pump. Is the check valve inside the pump?



------ Original Message ------
Received: Fri, 19 Apr 2019 09:34:35 PM EDT
From: theringmeister <theringmeister at triad.rr.com>
To: Christopher Gharibo <cgharibo at usa.net>, quattro at audifans.com,
20v at lists.20v.org
Subject: Re: 7A excessive cranking upon start up

> Sounds like a vacuum leak or fuel system is losing holding pressure... maybe
the check valve is going bad?  Leaky injectors causing cylinder wash and
killing compression? What injectors are you using?Sent from my Sprint Samsung
Galaxy S8.
> -------- Original message --------From: Christopher Gharibo
<cgharibo at usa.net> Date: 4/19/19  9:28 PM  (GMT-05:00) To:
quattro at audifans.com, 20v at lists.20v.org Subject: 7A excessive cranking upon
start up My ‘91 coupe doesn’t start unless I help it with the gas pedal
and even then, cranking is longer than it used to be. There are no codes.
What’s responsible for the rpm surge upon start up?CG
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