The Dispatch | Expert | Scudo Hub

Brunov

Member

Registered: 2022-06-08

Posts: 4

Pulsing turbo at 2700rpm

My 2011 dispatch 1.6 van has been fine with one exception.

Somewhere around 2700rpm with a bit of load, the turbo seems to engage and disengage about twice a second.
In 5th gear going up an A road hill it's very noticeable, jerking the car forward and back with the turbo audible for half a second as it pulses forward.

I have some egr fault codes, but when they were cleared, the problem was still there and it took about 3 weeks of driving for them to come back.

Just done a good MAF clean and immediately I thought I'd fixed it but 3 miles into test drive it's back (though slightly less noticeable).

What do you think? Get down to EGR (I hope not) or investigate why the MAF is dirty again? Both?

First post so hope that's enough info for you

all

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Brunov

Member

Registered: 2022-06-08

Posts: 4

Re: Pulsing turbo at 2700rpm

If the consensus if EGR, is it worth trying a clean, or just bit the bullet and get a replacement.
Labour is free as I've got the time and inclination, parts are dear, but I do want this thing fixed.

vaz2121

Member

From: Glasgow Living:~ SW. Scotland

Registered: 2015-08-31

Posts: 1,311

Re: Pulsing turbo at 2700rpm

I have cleaned maf sensors before with little or or no success, The trick seams to be keeping it clean [not always an easy option] and when it's becomes dirty and thrown a code up I've had to replace with a OEM version ................

Again not always the easiest option these days I try to avoid computer controls .........................

I also think it worth tackling at least cleaning or replacing EGR...........

Or possibly block it off ...........................
you may have to have some resticted flow through it, Being as young as it is and working [i.e. Computer will know if it's dead] ................

I have a friend who discovered an EGR fault on his Astra estate[He no longer has it and I dontknow what year it was] .....................
He got another working EGR from a scrappy and just plugged it in. piggybacking it but not using it effectively ..................................

Last edited by vaz2121 (2022-06-12 10:53:31)