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Discussion Starter · #1 ·
Hi, I have a '98 S70 T5/auto and recently the flashing up arrow occurred along with the CEL. I went to Autozone and got the P0123 code. Now, I know this indicates TPS but I was reading another thread that was describing the transmission not shifting until he lets off the gas pedal and it was suggested it could be the PNP switch. I'm kind of new to all this but I was researching info on TPS's and from what I read, it is usually described at puttering or cutting out when trying to accelerate, which is not my problem.<br>My symptoms:<br>-My car goes through all the gears but wont shift until very high RPM or sooner if I left off the gas.<br>-When I first start my car in the morning, it idles high at 2k for a few minutes but after that it idles low at around 500 and rarely almost dies.<p>Can the PNP switch throw the P0123 code?<p>Thanks in advance,<br>-Shane
 

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Re: 98 s70 T5 flashing up arrow (red98s70)

One has nothing to do with the other, A bad PNP switch should not cause anything different in the way it runs or idles, you have two issues<br>In the meantime, "row" the shifter back and forth rather quickly about 20 times, engine on, BRAKE ON!<br>This <I>should <U>temporarily</U> </I>clean the contacts of the PNP switch.<br>(You still will need to replace it even though this works but it bides you some time)
 

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Discussion Starter · #3 ·
So, I don't have a problem with the PNP switch at all then?<p>The problem im having is with the delay in shifting and the idle. I just brought up the PNP because of what I read elsewhere.<br>Thanks, Shane
 

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Re: (red98s70)

Please READ<br><B>Flashing arrow= bad PNP switch </B>(or a blowed up tranny) <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"><br>and you have TWO separate issues here.
 

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Discussion Starter · #5 ·
I see what you are saying now, its just weird that they both happened simultaneously then.<br>Thank you though.<p>Anyways, out of curiosity... what would indicate that the transmission speed sensor or vehicle speed sensor needed to be replaced?<br><A HREF="http://www.usatransdoctor.com/foreignvolvo.htm#AW50-42LE" TARGET="_blank">http://www.usatransdoctor.com/...-42LE</A>
 
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