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ETS Light and strong hunting idle 1999 V70 NA 5-speed

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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ortizmyers
Posts: 3
Joined: 6 November 2012
Year and Model: 1999 V70 NA 5-Speed
Location: United States

ETS Light and strong hunting idle 1999 V70 NA 5-speed

Post by ortizmyers »

So I replaced the ETM with a xemodex box 6 months ago, replaced the MAF with a new Bosch unit 2- weeks ago.

Best I can tell once the car warms up if I turn it off, let sit for a few minutes and restart the hunting ends and the light goes away and is no longer in limp home mode.

I didn't think a temp sensor could do this, but does anyone have any suggestions or thoughts as to what the problem is?

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 »

What light are you referring to? The ETS light or a CEL?
Have you cleaned the throttle bore?
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

ortizmyers
Posts: 3
Joined: 6 November 2012
Year and Model: 1999 V70 NA 5-Speed
Location: United States

Post by ortizmyers »

ets light will come on. I haven't cleaned the throttle bore because it has a rather new ETM...

I will start the car first thing on a cold morning. Without touching the accellerator it will rev to 2k and then drop down and begin hunting. and begin flashing a ets light and after a couple seconds a CEL will fire.

If I toss a code reader on it shows MAF, ETM, and temp sensor.

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 »

Exactly which codes are showing?
Current cars VW Transporter 2.5TDI, 2010 XC90 D5 R Design

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