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engine surging

Everything on the Volvo S80. Sometimes called an "executive car", the S80 was Volvo's top-of-the-line passenger car. P2 platform.
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Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

engine surging

Post by Oldsguy »

Replaced etm with rebuilt from bba in mass..also did oiltrap a week later, now car is reving between 1500-2200 and wont stop till shut off. Could this be maf sensor?

Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

Post by Oldsguy »

Ok, changed Maf sensor..still doing it..changed battery because other was weak. Im lost..next a match and lightwr fluid.

precopster
Posts: 7543
Joined: 21 August 2010
Year and Model: Lots
Location: Melbourne Australia
Has thanked: 8 times
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Post by precopster »

Have you done basic tests for ETM power at connector?
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

Post by Oldsguy »

No..not sure how to do that. Dealer installed etm 2 weeks ago, they got me nervous mentioning oil trap. So i did it figuring it was an easy diy cleaning, after putting it back together is when i experienced throttle issues. And idle issues. Gonna check again today to make sure i didnt leave something unhooked. If the idle air control valve is left off will vehicle run..and possibly cause these issues?

precopster
Posts: 7543
Joined: 21 August 2010
Year and Model: Lots
Location: Melbourne Australia
Has thanked: 8 times
Been thanked: 128 times

Post by precopster »

Large green wire at lower left of connector going to ETM is +12V , right next to it is ground (large brown wire)

Does ETM click on when ignition switch is at PosII and then click off in around 8 seconds?

Have you scanned the car for codes?
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

Post by Oldsguy »

It does click on and off..no codes showing..and reader says no codes found. There is a service light that comes on at startup..then goes off after a few minutes. I have disconnected battery a few times while working on it..and this issue arrose after doing oil trap, before that, it ran fine after etm install and software update.

Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

Post by Oldsguy »

Im a gas, air, spark guy..this comp crap is for the birds

precopster
Posts: 7543
Joined: 21 August 2010
Year and Model: Lots
Location: Melbourne Australia
Has thanked: 8 times
Been thanked: 128 times

Post by precopster »

Is this a turbo mill?
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

jbkeene
Posts: 116
Joined: 6 August 2013
Year and Model: 2000, S80, NA
Location: 06776

Post by jbkeene »

did you use a new gasket for the ETM?
did you forget to install gasket?

Oldsguy
Posts: 30
Joined: 8 May 2015
Year and Model: 2001 S80 2.9
Location: Derry NH

Post by Oldsguy »

No..2.9

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