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Date:         Sat, 17 Oct 2009 15:04:01 -0700
Reply-To:     neil n <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil n <musomuso@GMAIL.COM>
Subject:      Re: Surging engine
Comments: To: Paul Chubbuck <paul@takingflight.net>
In-Reply-To:  <000801ca4df8$2a9079a0$7fb16ce0$@net>
Content-Type: text/plain; charset=ISO-8859-1

On Thu, Oct 15, 2009 at 5:32 PM, Paul Chubbuck <paul@takingflight.net> wrote: .....

> I have been told by two different seemingly competent shops that the problem > lies in a part numbered Bosch 0 438 101 005, which I believe is called a > fuel flow meter or a fuel injection pump.  Not sure of that...I'm not a > mechanic, as must be obvious. > > The first shop to work on it had it back at least 5 times before they gave > up.  They tried cleaning and adjusting that component to no avail.  They > couldn't get a new part and tried replacing with a used part and said the > other used parts performed worse than my own.  They also replaced the O2 > sensor. > > The 2nd shop said replacement of that part would cost me $2000 because the > part is not made any more.  They offered to do an engine conversion to a > Suburu for $12,000! > > Can you tell from the symptoms if this part is really the culprit?  Is there > any way to replace this part at a reasonable price? > > Thanks very much in advance. > > Paul Chubbuck in Fort Collins >

Googling the $2000 (installed $ presumably) Bosch PN as 0438100100 gives me this

http://www.gmpperformance.com/index.cfm?PG=detail&PID=111539

More searching tells me that unless you find a known working good used part, you are likely dealing with getting a rebuilt part. IF that part is at fault.

If you haven't already done so, take your ride to a VW specialist that knows electrical really well. Have the engine electricals checked out. The surging could be something as simple as a loose wire or other connection.

And not that you asked but...... ;)

IF current engine fine otherwise, (good compression, no smoke/leaks etc.) consider changing from CIS engine management to Digifant. In comparison to CIS, Digifant is a much more modern engine management system. And I bet this would be much less money than the quote for the Suby swap..... if done right the first time.

Or..... swap in a later model year 1.8 8 valve that already has Digifant.

Neil.

-- Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines


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