Car won't start after intake install
 

Hey guys, trying to troubleshoot a starting issue.

1. Installed new Blitz intake and removed sound piping. Plugged both sound generator holes.
2. Car started and after a few seconds shut off.
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.
5. Car won't turn over. Turn key, nothing.
6. Cleaned MAF with MAF cleaner
7. Put stock intake back on.
8. Car won't turn over. Turn key, nothing.

Any ideas? The starter system looks OK. Battery looks like it has lots of power. Can't find any loose connectors. I'm at a loss.

I suggest you clean the battery posts and cable connectors......maybe you have a bad connection ......:iono:


humfrz

Replaced battery just now. No dice.

No power at all, or just doesn't crank?

If no power at all, pop the fuse box open and check fuses as well as that there is power at the fuse box

Check the fuses?

Dash lights and headlights and everything turns on. Key turning just does nothing. What exactly do I check in the fuse box?

I still feel like it's something I tweaked in the MAF harness (loose wire in there somewhere) when I was rerouting it from the stock position. Or bad MAF and my cleaning didnt work.

Disconnect the MAF sensor (leave the actual sensor in place, just unplug it) and see if it starts.

Nope nothing :/ Argh.

If you have dash lights , check the colour of the key or lock symbol in the dash it its red or yellow car wont start as security is active, the key symbol should go green if the code is being read from key fob correctly.

try your spare key.

also try removing battery terminal again and pressing brake pedal to bleed off any residual power then reconnect.

bad maf or map sensor wont stop cranking, it should crank. it might not start but should crank

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

I'm wondering if the problem isn't completely unrelated and it just happened when you put in the intake by coincidence.
AT or MT?

Check all the fuses and you need to determine if power is actually getting to the starter.

MT. What fuses would those be?

Check the fuse box and make sure none are blown. I don't think that's the problem but check. If I didn't read your OP and you just said that you turn the key and nothing happens but the battery is good, I'd say that the clutch safety switch is the culprit. Try to push the clutch in like you are trying to push it through the floorboards (make sure there's no carpet in the way) and turn it on then. Do you get ANY noise at all when you turn the key? A click or anything?

It'd really help and narrow things down a lot if we knew if the starter is getting any juice when you turn the key

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!

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

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

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

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

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

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?

This. It is an intake.

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

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...