405 bad runner
From: Marco (miljaar@wanadoo.nl)
Date: Sat 17 May 2008 - 09:25:29 EDT
Dear all.
As you may recall i bought my 5th peugeot last month and was very thrilled
with my ownership. The guy that sold it to me told me it had a rough ride
because it had a battery replacement and needed a while to reset. After
driving for a while a noticed it used about 15 mpg which to me was kind of a
lot since my 604 uses 17-18 mpg and that's a V6.
Anyway, I started to do some research in a Dutch forum. It turned out that
most people said I had to do some measurement on the Lambda sensor. It put
out 0.8 volts DC steady. Way to much and steady voltage so presumably
broken. I didn't replace it right away but thought I needed some more
research. Reading further on I als read that someone asked to reset the ECU
and they also asked the place for a mapsensor, located just below the engine
cover lock.
I followed the reset procedure and also tried to find the mapsensor. And
wouldn't you know there was a rubber hose between the intake manifold and
the mapsensor which was ripped just below the sensor...
That must be it I thought and grabbed a knife. Cut off the broken piece and
put the frikkin' thing back on. Started the engine and it ran terrific!!!!!!
Hopefully that'll bring my mpg level to way better levels and also make the
engine run smoother.
Cheers
Marco
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