Only 6 psi!

[tarmacblack1]

so I went to blend with traffic earlier and car only built 6 psi. Not sure where to begin troubleshooting. Car isn't smoking or throwing any CEL.

Mods
JB4 MAP7 + fuel wires
BMS WMI stealth kit
EWG wires
Catback
Injen intakes

Any suggestions I'm all ears. Thanks!

 

[Terry@BMS]

Throw up a log if you need tuning advice.

 

[tarmacblack1]

Not tuning advice per say. Was on the same tune last time I drove it. I'll try to post one regardless.

 

[tarmacblack1]

More like trouble shooting. Everything with the tune should be fine. Can't figure out how to post a log here anyways.

 

[sym]

Is it still happening or was it a one time deal?

I ran into the same issue intermittently but I haven't had to deal with it for a while. If you have an older JB4 (think 2018) you might need a new 2580 chip. I've also had it lock on to a low boost target after a safety trigger (make sure the car isn't in map 0 anymore) or a misfire. A misfire will make your JB4 really act up. In my case it was bad gas but it could also be plugs.

 

[tarmacblack1]

It happened multiple times today. I believe I have a newer JB4. What do these cars do if they enter limp mode?

 

[tarmacblack1]

still in map7 as well

 

[tarmacblack1]

Nobody?? I'm going to disconnect the - battery cable in case it's in limp mode. The JB4 would show a code and I'd have a CEL if it went into limp mode correct?

 

[Terry@BMS]

OK if you wind up needing any JB4 help feel free to email in a log and some install photos. We don't check this forum often enough for real time technical support. My email is terry@burgertuning.com

 

[tarmacblack1]

Gotcha. Thanks Terry!

 

[Luc343]

How much psi do the turbos normally make in a stock engine?

 

[General_Vodka]

I idle at around 8 but mine isnt stock

 

[General_Vodka]

I idle at around 8 but mine isnt stock

Don't know how to export a log but here is a screenshot

 

[tarmacblack1]

Umm I went from 20psi down to 6psi at WOT lol. I don't pay attention to boost at idle. Maybe you misunderstood what I was getting at. Its likely not a JB4 issue but I thought Terry may have encountered this on a customer car. I am running a meth kit and the EWG wire mods so there are many variables on the electronic side for things to go wrong. About to go dig into here shortly.

 

[General_Vodka]

Umm I went from 20psi down to 6psi at WOT lol. I don't pay attention to boost at idle. Maybe you misunderstood what I was getting at. Its likely not a JB4 issue but I thought Terry may have encountered this on a customer car. I am running a meth kit and the EWG wire mods so there are many variables on the electronic side for things to go wrong. About to go dig into here shortly.

Oh cut boost during a pull? That's not fun

 

[tarmacblack1]

Got it figured out fellas. Must have been some limp mode action lol. Reset the ECU and tamed the waste gate settings and she's running tip top again.

 

[Pearl]

Got it figured out fellas. Must have been some limp mode action lol. Reset the ECU and tamed the waste gate settings and she's running tip top again.

How do you tam the waste gate?

 

[monusa]

A misfire will make your JB4 really act up. In my case it was bad gas but it could also be plugs.

Bad gas got me and it sucks! I keep a brand new set of plugs on hand just for any issues but can't do much about bad gas but let it run out.....

 

[Oryan]

Bad gas got me and it sucks! I keep a brand new set of plugs on hand just for any issues but can't do much about bad gas but let it run out.....

Leave your car at my house. My bible-thumping neighbor will happily take care of your gas if she thinks it'll bother me.

 

[monusa]

LOL!!!!! Not too far away in KY