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Old 03-17-2018, 11:53 PM   #1
10secdream
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Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default 2015 WRX Wont Start after Accessport/Modification Uninstall

Just uninstalled all my modifications to return my vehicle back to stock and I went to fire it up and it starts for about 1/2 a second and then dies.

Any advice on what I should check first? To my knowledge I plugged everything back in and I uninstalled the accessport correctly. I checked for codes and there aren't any. My guess is that something isn't connected properly and is preventing the vehicle from running.

Here is my list of modifications I had removed:
- TGV Delete
- EGR Delete
- Intake
- EBCS
- Jpipe
- Accessport
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Old 03-17-2018, 11:59 PM   #2
shvne
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Member#: 482410
Join Date: Feb 2018
Default

Quote:
Originally Posted by 10secdream View Post
Just uninstalled all my modifications to return my vehicle back to stock and I went to fire it up and it starts for about 1/2 a second and then dies.

Any advice on what I should check first? To my knowledge I plugged everything back in and I uninstalled the accessport correctly. I checked for codes and there aren't any. My guess is that something isn't connected properly and is preventing the vehicle from running.

Here is my list of modifications I had removed:
- TGV Delete
- EGR Delete
- Intake
- EBCS
- Jpipe
- Accessport
Throwing any codes when it dies?
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Old 03-18-2018, 12:05 AM   #3
shvne
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Member#: 482410
Join Date: Feb 2018
Default

Quote:
Originally Posted by 10secdream View Post
Just uninstalled all my modifications to return my vehicle back to stock and I went to fire it up and it starts for about 1/2 a second and then dies.

Any advice on what I should check first? To my knowledge I plugged everything back in and I uninstalled the accessport correctly. I checked for codes and there aren't any. My guess is that something isn't connected properly and is preventing the vehicle from running.

Here is my list of modifications I had removed:
- TGV Delete
- EGR Delete
- Intake
- EBCS
- Jpipe
- Accessport
Woops my bad didn't see it isn't throwing codes. Id check the connections on the tgvs
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Old 03-18-2018, 12:33 AM   #4
10secdream
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Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

Quote:
Originally Posted by shvne View Post
Woops my bad didn't see it isn't throwing codes. Id check the connections on the tgvs
Thanks for the tip. I will double check those again and report back.
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Old 03-18-2018, 12:34 AM   #5
shvne
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Join Date: Feb 2018
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Quote:
Originally Posted by 10secdream View Post
Thanks for the tip. I will double check those again and report back.
If that doesn't work give it a shot installing the accessport and running just the stage 1 ots map and see what happens.
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Old 03-18-2018, 12:36 AM   #6
10secdream
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Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

I should also mention I tried reinstalling a stage 0 map to see what happens and it doesn't start.
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Old 03-18-2018, 07:11 AM   #7
simpleJ
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Member#: 391748
Join Date: May 2014
Chapter/Region: NESIC
Location: MA
Vehicle:
2015 WRX
CWP

Default

Vacuum leak
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Old 03-18-2018, 01:17 PM   #8
10secdream
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Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

I am hoping it is something that simple. Any areas in particular I should look into?
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Old 03-18-2018, 02:23 PM   #9
gn4rwhals
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Member#: 453427
Join Date: Aug 2016
Chapter/Region: MWSOC
Location: Detroit, MI
Vehicle:
2017 WRX
Crystal White Pearl

Default

As others have said could be a pinched gasket or something with the stock TGV
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Old 03-18-2018, 05:11 PM   #10
10secdream
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Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

I double checked the EGR install and everything is hooked up properly. I also looked at the intake and chargepipe and everything appears to be hooked up correctly as well.

I am going to try and redo the TGV's again this evening. I also loaded up the Cobb OTS Stage 1 tune and still doesn't start. From a sensor point of view is there anything I should look at via access port that would narrow down the issue?
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Old 03-18-2018, 05:13 PM   #11
GlarryHoodDIT
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Member#: 460907
Join Date: Jan 2017
Chapter/Region: RMIC
Location: Colorado
Vehicle:
2016 WRX
Phatron Tuned

Default

You can monitor TGV voltage on the AccessPort I'm pretty sure. Make sure both L and R are showing readings. Monitor MAF Voltage too, could be a MAF issue.
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Old 03-18-2018, 05:22 PM   #12
10secdream
Scooby Newbie
 
Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

I pretty much narrowed it down to the MAF. The car starts and runs with the MAF unplugged. Does anyone know what the MAF voltage should be when the car is not running?
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Old 03-18-2018, 06:05 PM   #13
10secdream
Scooby Newbie
 
Member#: 430251
Join Date: Sep 2015
Chapter/Region: W. Canada
Location: Alberta, Canada
Vehicle:
2015 WRX
Crystal White Pearl

Default

Pretty sure its a MAF. Only 4 pins are actually visible on the MAF and there are 5 wires going into it.

I also looked at the Grimmspeed extension harness and it is also missing some pins. There is some discoloration in there as well so I am guessing water got in the extension somehow and corroded the pins and when I pulled the extension off the pins came out.

Looks like I need to purchase a new MAF and a new MAF extension harness.
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