Rpd gauge not reading boost pressure

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Oct 28, 2012 | 08:34 PM

ccro62

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From: Corbin,KY

Rpd gauge not reading boost pressure

Hey guys I joined to hopefully get some advice, I have a 09 white ss/tc coupe and my rpd unit is reading everything but boost pressure do any of you all have any idea of why this could be please help.

Oct 28, 2012 | 09:19 PM

themacguy

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From: Canada's Capital

Lower MAP sensor or its wiring.

Oct 28, 2012 | 09:22 PM

jacream_booSSted

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From: Brinklow MD

i had this happened, unplugged my map sensor, let car run till it threw a code, turned car back off. cleared code, and it worked after that. lol idk maybe i just got lucky.

Oct 29, 2012 | 06:29 AM

ccro62

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From: Corbin,KY

Ok ill try that today thanks and it looks like the owner before me had a electrical boost controller but took it out before I bought it could this have anything to do with it?

Oct 29, 2012 | 09:01 AM

RoadconeTuning

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From: Upstate, SC

the cars have a electronic boost controller stock so i hope you didnt remove the stock boost control solenoid...

Oct 29, 2012 | 02:31 PM

ccro62

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From: Corbin,KY

I didn't do anything to it I got it used it was a insurance car that had been hit in the front so I got a low mileage car really cheap I've got everything back but this issue and I can't figure it out

Oct 29, 2012 | 04:58 PM

jarhead

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From: USA

Quote:

Originally Posted by themacguy

Lower MAP sensor or its wiring.

Every car I have seen have no boost to the rpd it was the upper map sensor ??? I never have heard how to know for sure which is bad upper or lower map although? I have a spare of both

Oct 29, 2012 | 09:14 PM

themacguy

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From: Canada's Capital

Mine said "no data available". It was the lower MAP.

Oct 29, 2012 | 10:53 PM

SSlobalt

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From: Kathmandu

Quote:

Originally Posted by ccro62

Ok ill try that today thanks and it looks like the owner before me had a electrical boost controller but took it out before I bought it could this have anything to do with it?

What would lead you to believe this? We're gonna need pictures. I can already tell.

Oct 30, 2012 | 08:35 AM

#10

ccro62

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From: Corbin,KY

So does anyone know how to diagnose which map sensor it could be

Oct 30, 2012 | 08:59 AM

#11

themacguy

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From: Canada's Capital

Does your RPD say "No Data Available" for boost?

Oct 30, 2012 | 01:39 PM

#12

jacream_booSSted

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From: Brinklow MD

i thought it was the upper map sensor for boost pressure.

Oct 30, 2012 | 02:04 PM

#13

ccro62

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From: Corbin,KY

no the boost gauge shows it just never shows any boost pressure it stays at zero.

Oct 30, 2012 | 02:16 PM

#14

jacream_booSSted

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From: Brinklow MD

oh...****. then idk i guess it must be map sensors or wiring. how does the car itself run?

Oct 30, 2012 | 04:41 PM

#15

ccro62

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From: Corbin,KY

Runs strong and because of the k&n Sri you can hear the bpv loud and clear. At first I thought the turbo just wasn't building anything but you can feel it when u get on it so I'm just kinda dumbfounded right now

Oct 30, 2012 | 04:43 PM

#16

ccro62

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From: Corbin,KY

If I figure it out ill be sure to share tho for no one else has to go through so much guess and check work

Nov 23, 2016 | 02:02 AM

#17

Zack Garner

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From: Renton, WA

I'm having the same problem and I just picked it up from the dealership used with just under 70k. Boost on RPD just stays at 0psi no matter how I drive it. Runs strong with no check engine light or codes. Help