hey guys just wondering if anyone else's RPD boos guage has given a cancel sign and said data not available. only happens every now and then when i drive really really hard and hit peak boost in like 3rd. usually it goes back, this time it hasnt yet. i turn it off and on and it fixes it but not yet this time. any idea whats goin on?

 

Are you tuned? You're pegging out the MAP sensors.

Nevermind, I Just read your sig. You're pegging out the MAP sensor.

 

sooo what does that mean haha. what do i do about it?

 

Nothing unfortunately.

 

Yeah usually it will come back after a little while but sometimes it doesn't if you're above ~22.5psi too long.

To fix this disconnect and reconnect either the battery or the ECU itself. This will reset the ECU and it will begin calculating boost again. When somebody connects to your car with Trifecta or HPT it will also fix the gauge.

 

OK i still have the trifecta cables, so if i plugged in and did like a code search think it would fix it? if i disconnect the ecu will it erase my tune or **** with my warranty?

 

Yeah the code reader may work.

Disconnecting the ECU will not erase the tune. It didn't when you were stock either. The tune is in memory inside the ECU that is similar to a thumbdrive, that doesn't go away when it doesn't have power. It's actually suggested to reset the ECU after doing mods so the ECU can adjust to them too.

Don't worry, you'll be fine.

 

this is not always true when i had my car tuned by bcp did hard 1st to second nls and it would come on and the boost guage never came up again from my rpd this happened twice . went to the dealer twice and blew the map sensor. basic fix would be stg 2 map sensor and dont nls anymore

 

Stage 2 map sensor? I had this a few times a while ago, but not recently and my car's definitely pulling harder and holding higher boost then it was. I'm spiking to 23.5PSI and holding 22.5PSI solid at WOT in warm weather. I only got the problem when I was spiking to 25PSI and then dropping to 21PSI.

 

I run over 25 psi and use NLS...havent blow a map sensor.

 

yeah we run 27psi on a gt3076r 09 occasionally the rpd display goes out, but it always comes back. Had another 08 kill his map at the track though on sunday, went to scan via hpt and coming up as 0kpa reading

 

ur map sensor is blown.i have the same problem right now.dealer said its map sensor

im tuned aslo pushing 21.5.just went out and never came back

 

Just because a car has a stored fault doesn't mean the sensor is bad. Clear the codes, and try again. Like BYT running a lot of boost and not killed a sensor yet.

A key cycle (also pop open the drivers door) always fixes my RPD when it says NO DATA, but YMMV

 

I agree with this guy ^ lol

Ive had it show NO code and blank, then reset with my handheld scanner and the RPD suddenly is back to life. Ive also had it where it did throw a code and just needed a reset

 

That's what I've been saying. Just give the ECU a "e-bump" and it'll usually wake up.

 

whats an e bump?

 

Try turning the car on and off. Take the key out in between also, open/close the door. Helped another time this happened

 

yea im waiting for my code to clear itself lol its been 2 days. i cleared it 3 times on sunday, but no luck yet. ordered the map sensor incase it fails to reset.

 

Just saying you can wake up the ECU by doing one of the things we've said.

Yeah, I've been running up to 25.5psi with no MAP issues so far. I guess some just tend to go out easier than others maybe.

In that case (when you're getting codes) I'm leaning away from being able to simply reset it.

 

yea, when i reset it, it just pops back up so it has to be the sensor thats why i bought it. i did do this thing called a vacuum tank bypass which might have caused it. if so ill be putting the tank back asap!!

 

Yeah my boost guage isnt working either, usually comes back but not this time, but I have no CEL's

 

boost guage back working haha. vince told me its because im above 22 psi. they dont go higher or something

 

i have one...that hasent happened but i notice a couple time the screan brightness would stay dall for about 5 min

 

So how do you know if ur map sensor is dead if u dont have the RPD? will you throw a code?

 

You'll throw a code for overboost and go into limp mode.