Jump to content
SAU Community

Recommended Posts

Hey all m35 Nismo ECU owners having an issue with the nismo ecu after install seems to idle really low and stall at the lights or sitting in traffic and has thrown a CEL.

Has anyone else had an issue with there nismo ecu idling low,stalling and throwing a code or any ideas on what the issue could be?

Cheers fellas

Link to comment
https://www.sau.com.au/forums/topic/439280-m35-nismo-ecu-low-idle-and-stalling/
Share on other sites

Have you done an idle air reset? Every car is different, if you've just thrown in a used ECU I'd suggest that it doesn't know that your car isn't set up for what its used to. I'd give that a whirl, procedure detailed here http://www.skylinesaustralia.com/forums/topic/275099-m35-still-stalling-not-idling-properly/#entry4662009

Ok so I did idle learn reset and all other diagnostics I could but to no avail car is still stalling.

I took out throttle body, BOV, MAF and cleaned it all, still stalls when at a stand still or coasting under 1000k. Then I took the vacuumed line off the FPR and I didn't stall as quick but inevitably still stalls after about 30-40 seconds at a stand still. So I'm stumped as to what the issue could be. Maybe MAF maybe FPR?

I thought it weird that it idles better with the vac line off the FPR though.

Any more thought gents?

Yeah it was sweet before Scotty just put in the nismo ecu and it has started stalling. I'll change back to the OEM ecu tomorrow and see how it goes but not sure why the nismo would cause it.

It's from a highly regarded m35 owner on this forum. I'm sure he wouldn't be selling shit parts as it runs well just not that great when at a standstill. It's given more low to midrange torque speed limit cut and revs higher all is sweet except the idle.

Cheers for the helpful comment davelol

Lol sorry mate didn't mean to sound like a dick!

I know brick was selling it and he's a top bloke. Did he have issues running it in his car? Think he said it was a bit rich...

When we do tunes on cars at work, whether it be a re-flash or a piggyback module, if they do what your car is doing, we always send the tuning file back and keep trying till we get a good one, or we send the module back under warranty. The point I was trying to make was, if you changed absolutely nothing else on your car except the nismo ecu and it started stalling, it's very likely an ecu problem.

Get an emanage on it, at least that way you can adjust the fuel.

No point adjusting the idle screw on an electronically controlled car. You need a consult 3 to set the idle properly, but if the AFR's are out it won't help.

Get an emanage on it, at least that way you can adjust the fuel.

No point adjusting the idle screw on an electronically controlled car. You need a consult 3 to set the idle properly, but if the AFR's are out it won't help.

Hey scotty, does that mean a nissan dealer would be able to adjust the idle?

It's from a highly regarded m35 owner on this forum. I'm sure he wouldn't be selling shit parts as it runs well just not that great when at a standstill. It's given more low to midrange torque speed limit cut and revs higher all is sweet except the idle.

Cheers for the helpful comment davelol

ECU may have run well on the sellers car but is yours exactly the same configuration... exhaust, intake, turbo etc?

Hey scotty, does that mean a nissan dealer would be able to adjust the idle?

Most probably. As long as the map is suited. If it's overfuelling then a throttle re-learn won't help much.

  • Like 1

All good dave I didn't take it as an attack. Lol

Brick was running a touch rich but was still running rich with the OEM ECU still in after. It runs ok with the vac line off the FPR which I thought was wired and not sure why that is but any ideas on that would be helpful.

Scotty I plan to go down the route of an emanage just saving up for it need to pay a few parking fines first lol.

I plan to take it to Nissan on Friday and see if they can adjust the idle through the consult. Otherwise I guess I just have to learn to have a aware right foot and manually keep the revs up where they need to be till an emanage can be sourced fitted and tuned!

But brick all idle issues aside cheers for the ecu and enjoying the better low to mid range torque and repsonse it gives!!! Thumbs up mate!!

  • Like 1

So it's running lean at idle then... Taking the vac line off at idle would richen it up I think. Perhaps it was just setup with an adjustable fuel reg initially...

I would be getting it on a dyno before anything else... Perhaps with an adjustable reg in place so you have some control over mixtures. Otherwise, go back to the stock ecu until you have the Emanage installed.

It's unusual, I would have thought the o2 sensor would have sorted it out, it must be a fair way out...

  • Like 1

So I couldn't get the car to Nissan today as worked dragged on. In the mean time I'll get my hand on a nismo FPR and gauge to adjust the pressure. What should the stock pressure be for the fuel? Is it around 30-40PSI? From memory.

I spoke to a few dyno places a while back and said they can't dyno tune my car as they don't have a suitable harness for it? Would that be the case as I thought there OBDII and most can connect to that.

Seems to have some hesitation when accelerating hard now aswel feels like air cut!? Weird!!

Cheers for the advice guys.

If no luck with Nissan and a dyno tune I'll just have to go back to OEM and wait for the emanage to get it all sorted.

  • 2 weeks later...

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

    • My experience with Rising Sun Exports Before agreeing to the sale I tried to do as much research as I could (obviously), his Facebook reviews are 98% and he goes Live at least once or twice a week. I contacted 2 people in the UK who had used him for their imports, both had positive feedback. His explanation and talk through of the import process was thorough, answering any query no matter how stupid it was. It felt as soon as the money was sent, communication dropped off. I asked for shipping updates every 2 weeks or so, not wanting to pester him, he never had any updates. I wasn't informed the car had been dropped off at the port, I only found out by his Facebook story. I asked for the photos taken at the port, knowing he would need some for insurance purposes. I received a few 5 second clips and that's it. When asked again, he said his staff had them. Weeks later I asked again, he tells me he doesn't have any, but does have 50 photos from the original advert. I never received them. I eventually got the documents sent via WhatsApp after I mentioned the port was requesting them. I purchased a CarVX report, to find out the vehicle is a Grade R with recorded accident damage, first recorded in 2017 when it was first auctioned. He never told me the grade, then again I didn't ask. His response was "Grade R means nothing, it wasn't chassis damage". Still, I would have liked to have been informed about it. Jon prides himself on being open and honest when it comes to inspecting cars, it's his main job doing so at the auctions for customers. When the vehicle arrived in the UK I noticed a few little cosmetic issues. It's a 21 year old car so it wasn't going to be mint condition. The side skirts are cracked on each corner and the sealant is failing. The front grill on the bonnet/hood isn't secured very well, mounting studs are missing. Both minor things, but again, it would have been nice to be told. During a Facebook Live walk around video of the vehicle, he mentioned it has a front Whiteline anti roll bar/sway bar. While on the inspection ramp, I noticed the stock item has been installed. When first questioned, his response was "the ARB? Switched? Since when, it never had them". Since sending video and photo evidence I've not received a response. I'm probably being over critical of the overall condition of an old car, but all I wanted was honesty (which he claims to have). I'm aware I wasn't his only customer, he's busy doing XYZ but other reviews praise him for great communication with regular updates and photos, I felt I didn't receive the same treatment. 
    • I was able to get some underside photos while the car was on the ramp The suspension is all Altezza/IS200/IS300 so getting part's will hopefully be less of a headache
    • Welcome to my 2004 Toyota Mark ii IR-V Fortuna (series 2) With a 1JZ-GTE powerplant under the bonnet (hood) it'll give me plenty of scope for power upgrades. For those who aren't familiar with imports, the 1JZ-GTE is a 2.5L 6 cylinder VVTi engine with a single turbocharger. This has the factory R154 5 speed gearbox, along with a aftermarket 2 way LSD differential (brand unknown). Under the arches are a set of CST Zero 1 alloys, 18x9 +30 225/40 up front and 18x9.5 +15 265/35 on the rear. The car was quite low in Japan and there's evidence of the wheels catching the rolled arches/fenders. The tyre's aren't great so I'm in two minds whether to replace both or just the tyres and put up with the wider wheels on the rear. The car still uses stock brakes with the addition of some braided hoses. The exterior is stock with the exception of a BN Sports front bumper and a replacement Fortuna grill  Moving to the interior, the steering wheel has been replaced with a dished MOMO steering wheel (which will get swapped for my Momo Tuner for the time being) Defi Link Gauges are mounted above the climate controls and on the A pillar, the Oil Temp,Oil Pressure,Water Temp and Boost gauges should help with spirited and track driving  The stock seats have been replaced with some retrimmed Recaro bucket seats. Being a larger build these are a little snug, unfortunately the orange isn't for me so I'll look into replacing these down the line. Other modifications include a twin plate clutch, Blitz intercooler, Evolve alloy radiator, a stainless exhaust with decat, HKS EVC-S boost controller and coil overs
    • Apologies for the long read My R34 GTT was up for sale at the beginning of spring due to a few repairs creeping up. The strut tops needed replacing, roof and bonnet (hood) painting (yay for 3 stage pearl) and the underside stripped and treated. I sold the car which allowed me to be in a much better place financially. Leading up to the sale I was already thinking about the replacement. In an ideal world it needed to be a good all-rounder. Something I can mess around with, modify, do track days, do the school run, go on long drives etc.  Options included but not limited to... Laurel C35, Evo 8/9, Civic FD2, Impreza Hawkeye, Aristo and even an Audi S4 Avant (I've already got the Mazda 6 wagon). But there was always one car at the top of the list The Toyota Mark ii JZX110 I found an advert on a Facebook group for an example in Japan, from a seller called Jon at Rising Sun Exports. A few messages back and forth and Jon calls me from Yokohama one morning (or afternoon in his case). He briefly explained the import process, the costs involved and a repeat of the advert. After much deliberation, the price was agreed and the sale was locked in. I've never imported a vehicle so I jumped into the unknown head first. The money transfer was completed through wise.com (fees apply), very easy to use and the money was with him within a day or two.  The car suspension was raised for the vessel and the car dropped off at the port. It was 7 weeks later when the bill of lading was received and the freight invoice sent to me, followed by the export certificate a couple of days after (both digital copies) In the mean time the port had been in contact. I needed an agent to deal with the NOVA (notification of vehicle arrival) along with the tax/duty invoice, this was £75.00. The port also had a fee of £100, I'm guessing to cover the cost of the 10 day 'free storage' and for moving the car off the boat etc. They need a copy of the vehicle invoice, freight invoice and export certificate to allow the vehicle to pass through customs. The vessel arrived on Tuesday 5th August, the tax/duty invoice was generated and sent over. This is generally tax 20% and duty 10% of the vehicle value. Although the invoice came in at a higher amount than I had calculated. Once HMRC had received the payment the vehicle could be released from customs. I thought once the tax/duty was paid you could collect at any point, that's not the case. Your agent will need to book a collection slot, I requested Thursday 7th which was accepted, with a 9:00am slot allocated. It was a 5:00am start from Norfolk heading to Southampton. We eventually found the compound, upon presenting the bill of lading and some ID they released the car (they drove it out of the compound to the front ready for us to load up). The email from the port stated each slot had a 10 minute window, which seemed abit farfetched but the staff said it's not a strict rule. We were there for approx. 30-40 mins in total. A week prior to collecting I contacted my garage and explained the situation, I was able to get an inspection slot that afternoon. For the registration, DVLA require the car to be insured, for this I used a company called Adrian Flux who can insure the vehicle using the VIN number. 
    • Hey guys, looking for these side skirts if anyone can help me out. 
×
×
  • Create New...