Re: 2 problems - cold start & revving

<Ted.Tofield@[EMAIL PROTECTED]
> wrote:

> I have 2 problems currently on my R-Reg 1.8 TS 156 ~145,000miles;
> 
> Cam Belt and Variator were done 2 months ago (also upper wishbones and
> anti-roll bar but that's not im****tant)
> 
> First of all I seem to be suffering the old Cold Start problem
> re****ted here several times (but no satisfactory answer given
> searching back...) upon cold starting revs rise then drop very low.
> upon opening throttle the engine splutters and coughs. If the engine
> is revved above about 3000 revs it sounds ok but below this is crap
> and can barely pull the car forward. This clears after about 30 odd
> seconds or 1/4 mile of driving. 
> I've had a quick look at the throttle butterfly valve with my
> mechanic, he'd fixed up a similar problem on a 145 (i think) by
> cleaning a sensor there. We used carb cleaner to dissolve off all the
> black gunk in there (also checked the various plugs and whatnot)
> The problem is slighly better and she certainly revs more freely now
> but it ain't fixed. any ideas?
> 
> Secondly the engine has problems revving over 5000 revs, it was crap
> before I had the belt and variator and has improved muchly but it's
> still not right. It feels like it's running out of ooomph and an
> upchange of gear gives much more pull straight away. Having driven
> several Alfa's recently; (a couple od 155 loaners from the garage and
> the 156 Selespeed i've mentioned here before) All of which had no
> problem in revving right up over 6000, i'm concerned there's some
> thing horribly wrong here.
> I've checked the plugs and they are all fine, they look new as well so
> I expect these are the cars second set.
> Air filter is new (ish) however I haven't found the fuel filter/ pump
> yet and oil needs a change.
> Any thoughts?

Both sound like they're related to the MAF sensor.

It's about £120 for an OEM Bosch part - don't even think about buying a
cheaper pattern or refurbished part.

Common issue on all cars which use this generic part, though.


-- 
SteveH 'You're not a real petrolhead unless you've owned an Alfa Romeo'
www.italiancar.co.uk - Ducati 750SS - Honda VFR800 - Hongdou GY200
Alfa 75 TSpark - Alfa 156 TSpark - B6 Passat 2.0TDI SE