Owner wastes thousands on parts only to find out it was a relay fault

Stephen Kasapis tells GW how ‘a bit of detective’ work fixed a fault where others had failed

Owner wastes thousands on parts only to find out it was a relay fault
The 2010 Audi A4 was suffering with Bosch GDI system low pressure and had already been fitted with a new high-pressure pump, new low-pressure pump and a new fuel rail sensor.

Speaking to GW Views, Stephen Kasapis said: “I was asked to see why the engine check light was coming on.

“This car had already had thousands spent on it but the engine light kept coming on with low power for the first five minutes.

“I scanned the system with a scan tool and it came up with low pressure system.

“What I did see with the freeze was the control system volts were only 11.97 volts?

“Ok, now don’t forget this car has already had lots of parts put onto it by another workshop and it was still not fixed.

“So I set up the scan tool and went for a drive.

“The fuel pressure was 580 PSI at idle and went up to about 1160 PSI, yes these Bosch GDI systems have very high pressure.

Now for more testing, so I set up my PicoScope Lab Scope to see why the car was coming up with low-pressure codes…”

This article first featured in Garage Wire Views, click here to continue reading and find out what was wrong.

Share your problem jobs

Came across a particularly troublesome job? Succeeded where others had failed? Send your story to [email protected] or tweet @GarageWireUK.

 

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>


The reCAPTCHA verification period has expired. Please reload the page.

Have your say!

0 0

Lost Password

Please enter your username or email address. You will receive a link to create a new password via email.