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1999 v70xc no throttle reponse

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Volvoeric
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1999 v70xc no throttle reponse

Post by Volvoeric » Tue Oct 29, 2019 9:46 pm

Have replaced throttle body...and pedal assembly... Still no acceleration...idles great...runs great....???...I'm stumped



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RickHaleParker
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Re: 1999 v70xc no throttle reponse

Post by RickHaleParker » Tue Oct 29, 2019 10:24 pm

How can you say it runs great if there is no acceleration ... Something is not adding up with your terminology.


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

Volvoeric
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Volvoeric

Re: 1999 v70xc no throttle reponse

Post by Volvoeric » Tue Oct 29, 2019 10:28 pm

Idles well. Runs smoothly is giving me a waste gate code



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abscate
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Re: 1999 v70xc no throttle reponse

Post by abscate » Wed Oct 30, 2019 5:53 am

Replacing a throttle body without software works20% of the time. Read up on the ETM Forum, below

You probably need to visit Volvo and spend$150 for software. Don’t tell them the throttle body isn’t factory just ask for a software load


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Mike Langlois
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Mike Langlois

Re: 1999 v70xc no throttle reponse

Post by Mike Langlois » Wed Oct 30, 2019 7:55 am

I had an issue like this on a 2002 2.4T. Tried everything including Vida. Good old fashioned detective work (and 3 months of investigation) lead to the problem. Repairs had been made to the wiring harness just short of the throttle body; crimp connectors instead of soldering. It was inside the harness and really hard to find. Problem persisted and I found a second set of "crimped" wiring repairs just short of the computer module; again buried in the harness. Incorrect wiring color was the clue that led to the solution. They sell new harnesses on e bay and other places.



Volvoeric
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Re: 1999 v70xc no throttle reponse

Post by Volvoeric » Wed Oct 30, 2019 2:36 pm

Interesting...I replaced my etm with a used yellow label unit ... would old fuel possibly effect throttle response...I have know idea how long this car sat...I bought it with a blown head gasket and fixed it



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abscate
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abscate

Re: 1999 v70xc no throttle reponse

Post by abscate » Wed Oct 30, 2019 5:33 pm

Interesting...I replaced my etm with a used yellow label unit ..
There are two versions of yellow label ETB, one is identical to the white label , the other has a contact less sensor.

I would rule out the ETB as a cause before chasing other avenues


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Volvoeric
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Re: 1999 v70xc no throttle reponse

Post by Volvoeric » Mon Nov 04, 2019 1:19 pm

Now I believe I have a stuck waste gate.. .no boost situation....any thoughts...



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Re: 1999 v70xc no throttle reponse

Post by tyguyc » Tue Nov 05, 2019 1:03 pm

My Thoughts on a open waste gate would be no power or decreased efficiency, not no acceleration.



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