Jump to content
SAU Community

Recommended Posts

pplz i brought a power fc off a memeber on here just finished rebuilding my motor went to start it today and the power fc wont start the car when i turn it on and the fuel pump wont stop running and all the lights on the dash flicker

so i grabbed a standard ecu and it starts can somone out there help me asap as im in need of this car so i can go away

Link to comment
https://www.sau.com.au/forums/topic/110114-power-fc-wont-start-the-car/
Share on other sites

yes series 1 and series rb25 use the same model powerfc.

the only suggestion i can offer is to

check the powerfc is connected properly (loom plug is in OK)

no bare wires on the loom are shorted out

no wires loose or not connected properly

the powerfc doesnt have a burnt smell to it

does the hand controller come up and run ok if you just turn to ON and don't start the car? like can u actually use the hand controller like this?

umm no boost kit that i know about but how do i turn it off also no burnt smell the screen flashes with the sound of the clicking of the car its lights up i might try the power fc on a mates car

how do i turn the boost kit off i dont think i have one ???

try it witha jumper battery connected, noticed mine turns off and will not start the car without heaps of power..

plus it always turns on the dash lights then switches them off, clicks then they come on and car starts..

i cant get into the menu the screen flashes on the hand controller the relay in the back on the car in the boot next to all the fuses clicks as well while trying to start

i pmd the guy who sold it to me no reply yet

it was brand new im just hoping i can fix it the car has being off the road for 5 months now icthing to get it going

if i put up the numbers of the ecu can someone tell me wat model it is for ??????????

on the side of the ecu it should have the the model number

your looking for ECR33 or RB25 something something which should confirm the model number. its on a white sticker

when mine was fried the screen would go crazy and make constant ticking noises and never boot up

well the way i figue it can be the relay cause the stock ecu starts it no props im goin to try the power fc on my mates car today and ill post some numbers up if i cant get any futher with it

johnny cash : slept like a log just finshed work at doms

hey, mine did the exact same thing when we had the AFM wired up wrong. All the dash lights flicker on and off, the fuel pump goes flat out, and then eventually the fuse blows and the dash stops flickering.

Scared the shit out of us. No damage to the powerfc, just a blown fuse.

If its not the AFM, it will be something else shorting the f**ker out.

Good luck mate, and be careful.

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


  • Similar Content

  • Latest Posts

    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
    • Hi,  Just joined the forum so I could share my "fix" of this problem. Might be of use to someone. Had the same hunting at idle issue on my V36 with VQ35HR engine after swapping the engine because the original one got overheated.  While changing the engine I made the mistake of cleaning the throttle bodies and tried all the tricks i could find to do a throttle relearn with no luck. Gave in and took it to a shop and they couldn't sort it. Then took it to my local Nissan dealership and they couldn't get it to idle properly. They said I'd need to replace the throttle bodies and the ecu probably costing more than the car is worth. So I had the idea of replacing the carbon I cleaned out with a thin layer of super glue and it's back to normal idle now. Bit rough but saved the car from the wreckers 🤣
    • After my last update, I went ahead with cleaning and restoring the entire fuel system. This included removing the tank and cleaning it with the Beyond Balistics solution, power washing it multiple times, drying it thoroughly, rinsing with IPA, drying again with heat gun and compressed air. Also, cleaning out the lines, fuel rail, and replacing the fuel pump with an OEM-style one. During the cleaning process, I replaced several hoses - including the breather hose on the fuel tank, which turned out to be the cause of the earlier fuel leak. This is what the old fuel filter looked like: Fuel tank before cleaning: Dirty Fuel Tank.mp4   Fuel tank after cleaning (some staining remains): Clean Fuel Tank.mp4 Both the OEM 270cc and new DeatschWerks 550cc injectors were cleaned professionally by a shop. Before reassembling everything, I tested the fuel flow by running the pump output into a container at the fuel filter location - flow looked good. I then fitted the new fuel filter and reassembled the rest of the system. Fuel Flow Test.mp4 Test 1 - 550cc injectors Ran the new fuel pump with its supplied diagonal strainer (different from OEM’s flat strainer) and my 550cc injectors using the same resized-injector map I had successfully used before. At first, it idled roughly and stalled when I applied throttle. Checked the spark plugs and found that they were fouled with carbon (likely from the earlier overly rich running when the injectors were clogged). After cleaning the plugs, the car started fine. However, it would only idle for 30–60 seconds before stalling, and while driving it would feel like a “fuel cut” after a few seconds - though it wouldn’t fully stall. Test 2 – Strainer swap Suspecting the diagonal strainer might not be reaching the tank bottom, I swapped it for the original flat strainer and filled the tank with ~45L of fuel. The issue persisted exactly the same. Test 3 – OEM injectors To eliminate tuning variables, I reinstalled the OEM 270cc injectors and reverted to the original map. Cleaned the spark plugs again just in-case. The stalling and “fuel cut” still remained.   At this stage, I suspect an intermittent power or connection fault at the fuel pump hanger, caused during the cleaning process. This has led me to look into getting Frenchy’s fuel hanger and replacing the unit entirely. TL;DR: Cleaned and restored the fuel system (tank, lines, rail, pump). Tested 550cc injectors with the same resized-injector map as before, but the car stalls at idle and experiences what feels like “fuel cut” after a few seconds of driving. Swapped back to OEM injectors with original map to rule out tuning, but the issue persists. Now suspecting an intermittent power or connection fault at the fuel pump hanger, possibly cause by the cleaning process.  
×
×
  • Create New...