Car won't start after intake install

[ajh88]

OK it was a blown EFI CTRL fuse. Replaced with one of the spares and she started right up. When I originally did the intake install I stupidly left the battery connected. Assume that blew it? Would love for someone to chime in and educate me on why this migt have happened. I am an electrical noob.

And thank you everyone for the help!

[FirestormFRS]

Did you remove any ground wires that didn't get reinstalled?

[steve99]

Originally Posted by ajh88

I dont have that symbol at all... 2013 with regular key (no push to start or keyless entry stuff).

Arrh ok i think the key start models should crank and even start if key code not read but will cutout after about 5 seconds with no code , not ,100% on this though.

check fueses anything to do with ecu or ignition like they other guy said


of you have a device to read edu error codes that may help

[steve99]

Originally Posted by ajh88

OK it was a blown EFI CTRL fuse. Replaced with one of the spares and she started right up. When I originally did the intake install I stupidly left the battery connected. Assume that blew it? Would love for someone to chime in and educate me on why this migt have happened. I am an electrical noob.

And thank you everyone for the help!

if i get a chance ill look at the wiring schematic, often a fuse like efi control will feed several circuits like ecu and sensors the unplugged maf cable may have shorted to ground or similar

[ryoma]

when I installed my Grimmspeed CAI, I didn't unplug my battery. I had no blown fuses and the car started right up. not sure why your fuse blew but it shouldn't be normal. I never unplug my battery because I'm lazy and don't want to reset my radio channels lol

[steve99]

Originally Posted by ajh88

OK it was a blown EFI CTRL fuse. Replaced with one of the spares and she started right up. When I originally did the intake install I stupidly left the battery connected. Assume that blew it? Would love for someone to chime in and educate me on why this migt have happened. I am an electrical noob.

And thank you everyone for the help!

Checked the wiring diagrams the EFI CTRL fuse feeds power to a whole lot of sensors (VVT , port injectors ,vvt position sensors, CPC solenoid) including the MAF sensor. Id sat somehow the maf sensor cable red wire B+ pin got shorted to earth at some point

[guybo]

For something simple like an intake I never disconnect my battery either (same reason- I don't want to have to pair my phone and reset radio stations) but I do pull the ECU fuse to reset the fuel trims.

That's really weird. How the hell did it blow that fuse once you got the car started?

How do you like the intake so far?

[Summerwolf]

Originally Posted by ryoma

when I installed my Grimmspeed CAI, I didn't unplug my battery. I had no blown fuses and the car started right up. not sure why your fuse blew but it shouldn't be normal. I never unplug my battery because I'm lazy and don't want to reset my radio channels lol

This. It is an intake.

[guybo]

Originally Posted by steve99

Checked the wiring diagrams the EFI CTRL fuse feeds power to a whole lot of sensors (VVT , port injectors ,vvt position sensors, CPC solenoid) including the MAF sensor. Id sat somehow the maf sensor cable red wire B+ pin got shorted to earth at some point

It must be related to this. I have no clue how you can mount the MAF wrong, but I have never seen this intake before either. I'm thinking you're right on, steve

3. Realized I may have not followed directions totally and the MAF was slightly off where it should have been.
4. Repositioned MAF as it should have been. Took neg battery terminal off for a while to let ECU reset.

[ajh88]

The Blitz Advance intake has a small plate sandwiched between the intake and the MAF, and since the instructions were in japanese I inadvertently put two of the screw sleeves on the wrong side of the sandwich. This positioned prevented the MAF sensor from going all the way down into the chamber, by maybe a centimeter (however long the screw sleeves are). But it was enough to upset the MAF reading to make the engine shut off.

This is my daily so once I got everything running again I held off on the install. Will revisit this weekend. Got a SARD quad exhaust and TRD bumper garnish to put on too - arrived today - if I'm feeling ambitious. But it's cold...