Jump to content
SAU Community

Ecu Code 45 - Injector Leak

markk

By markk,
in Engines & Forced Induction

 Share

Recommended Posts

markk Community Regular

markk

Posted
Posted

Hi Guys,

I've had some issues with my 32 gtr. Mods include: GT 2860R Turbos, Cooler, Splitfire coils, PFC. Currently making 275 @ all four.

I've had some severe missing issues with the car lately. It got to the point where the car was running constantly on 5 cylinders, even on idle. I was getting knock levels up at around 105!

I took it to my mechanic and he changed spark plugs, tested coils, changed ignition amp, cleaned AFMs, replaced the wiring harness, comp tested motor. Car was running fine for about 30mins before it started again.

I put in my old ECU, took the car for a drive and after about 30 mins it started doing it again. I put the ECU into diagnostic mode and error 45 came up - injector leak.

So what exactly does an injector leak mean?? Do i need new injectors?? Could it be fuel pump??

Any help would be appreciated. ;)

Cheers

Link to comment
https://www.sau.com.au/forums/topic/138638-ecu-code-45-injector-leak/
Share on other sites
cameron Mentor

cameron

Posted
Posted

Its means the injector is leaking... Probly one of the o-rings is split.

Im not sure how it would recognise this fault, maybe a big vary in one of the inj duty cycle?

The knock sensors can pick up noise from the missfire and log that it was detonation, And In your case it sounds like the spark plugs/plugs are foulded.

Pull the injectors out replace the o-rings in all injectors, even while their out get them flow tested/cleaned make sure theirs nothing wong inside the injector - I wouldnt think this is common.

Also if it was that bad, change the oil... fuel in the sump = spinning bearings!

See how you go!

SteveL Mentor

SteveL

Posted
Posted (edited)
I put in my old ECU, took the car for a drive and after about 30 mins it started doing it again. I put the ECU into diagnostic mode and error 45 came up - injector leak.

No such thing as error code 45 according to the R32 GTR factory WS manual, you'd better re-check. In any event the stock ECU diagnostics aren't set up to detect injector leaks as already suggested.

Edited by SteveL
paulr33 Grand Master

paulr33

Posted
Posted

id be surprised if the ecu could detect injector leak also, it would have no way of knowing. read the powerfc faq in my sig, theres a known misfire bug in the r32 gtr powerfc and it outlines a working fix for it

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Rezz
      Shoota's R33 GT-R RB30/26

      By Rezz · Posted

      What an awesome idea to fit the facelift Lamborghini Diablo headlights. They are a perfect fit!
    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      An update regarding the registration with the DVLA I sent off the paperwork the day after I collected the car from the port, two weeks later it was all returned with a letter explaining they have rejected the application. This was because the cheque was £20 short for the road tax (I used a price list I found online). Nevermind it is what it is, it was sent back to them the following day with a new cheque. Fast forward another 2 weeks or so, I called them for an update to be told it had been rejected. Yesterday (16th September) I received the documents back along with another letter, this time it was because I didn't put an X in one box on the V750 (personalised number plate certificate), which declared that I had the rights to the personalised number plate. Why this wasn't mentioned in the first rejection letter, I don't know, but it could have saved this headache. The documents were sent back today, so fingers crossed third times a charm and it'll FINALLY be registered on the road just in time for the bad weather (woohoo!) To cheer myself up I lowered the front 25mm, was sick of seeing it sit like a monster truck. No idea how much clearance I'll have getting on and off the driveway, I'll worry about that when I can actually drive it
    • Dose Pipe Sutututu
      Chris' Toyota Mark ii JZX110

      By Dose Pipe Sutututu · Posted

      You're going to miss not worrying about rust in the strut towers like the Skyline shitboxes out there
    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      A few little updates that weren't filmed due to not taking long to do or not interesting enough for their own video. My new K&N Air Filter arrived, I went with an RU-4180 which matched the dimensions of the universal cone filter the car originally had.  The battery had gone flat, while that was charging I tidied up the spaghetti wiring at the bulk head and down the sides of the engine Next job was to swap the stereo The Kenwood harness had the female ISO plugs cut off and the male ISO plugs cut off the adaptor loom and joined with bullet connectors. I ordered in a repair loom through work and re-did it all. New Kenwood unit installed (Android Auto, DAB, Bluetooth, Reverse Camera) The bonnet/hood gas struts have been poor since collecting the car. I couldn't find any suitable replacements locally so took a chance on a pair from AliExpress.  The originals don't use a retaining clip to secure the cup onto the ball fixture, would explain why I struggled for 10-15mins trying to pry off the cups. The ball fixtures unscrew using a 12mm spanner, new ones are the same size. Sadly no photo of them fitted, you're not missing much lol The dished Momo steering wheel got replaced with my Momo Tuner, turns out I ordered counter sunk bolts for the horn trim ring (like they normally are for the steering wheel) instead of allen cap (flat seat)  A terrible photo of a Quaife style gear shift knob I've had stashed in my tool box for many years after purchasing the incorrect thread size (I can see a pattern emerging with ordering incorrect parts...) Also threw in a cup holder and a (empty) Boss Coffee can, because why not  
    • Shoota_77
      Shoota's R33 GT-R RB30/26

      By Shoota_77 · Posted

      GT-R clearly the better choice! The 300 is certainly not insaly fast but has a decent amount of poke. Does a nice little drift around the corners with a decent amount of throttle. It's VERY predictable in a slide too.  Feels so progressive! People probably presume there's a 25 year old driving it based on my behaviour this week! 🤣
×
×
  • Create New...