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S40 2.0T cuts injection

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

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Year and Model: S40 2001 2.0T
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S40 2.0T cuts injection

Post by shick95 » Mon Dec 23, 2019 7:22 am

Hi guys! In new here so im glad to be part of this forum. I have an 2001 s40 2.0T which runs pretty well, but it must have some kind of issue that i cant diagnose nor with the scan tool or any other test. The car wont past 4000rpm when its cold, when that happens the revs wont go up that limit and the engine light flashes and goes out leaving no codes whatsoever, it happens when i'm driving at the city. But when the engine is warmer the engines goes smooth as it should and revs perfect. Other simptoms that i have had are stalling after revving it high, sometimes it struggles to start, not always.
Besides that issue the car runs just fine, but im worried that the problem could be something important and i dont want to damage the engine or something.
Any of you guys have any idea what it could be, or had any similar issues? I'm all ears.
Happy christmas and a happy new year, thanks in advance guys.

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Re: S40 2.0T cuts injection

Post by RickHaleParker » Mon Dec 23, 2019 1:15 pm

Coolant Temperature Sensor.

Temperature (°C) Resistance, (kΩ) Voltage (V)
-10°C 18.08 kΩ 0.90 V
000°C 11.36 kΩ 1.30 V
+10°C 7.32 kΩ 1.76 V
+20°C 4.84 kΩ 2.26 V
+25°C 4.00 kΩ 2.50 V
+30°C 3.28 kΩ 2.74 V
+40°C 2.28 kΩ 3.18 V
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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