Jump to content
SAU Community

Recommended Posts

Does anyone in Brisbane have software to analyse my car? Something like data scan? Data scan is not configured for the V36 yet. I think I have a problem with one of the following but cannot be sure without spending thousands randomly replacing parts.

On light throttle (high load) there is a very subtle stumble, the engine feels smooth but the power delivery is on off on off. Give it WOT and it's fine. Originally I suspected the fuel 95ron, then the gearbox, then spark plugs which I replace. It also has a grounding kit. I have been using 98 octane and the problem has been there almost as long as I can remember. 2 years owned. People have suggested crank angle sensor, my mechanic has suggested a lazy O2 sensor. Does anyone have something they can definitive look at and prove something is malfunctioning? When I had my 300zx it was possible to see if you had a lazy O2 by looking at the duty cycle in data scan. I'm looking for something similar as I don't fancy replacing 4 O2 sensors on the off chance one of them is faulty?

P.S. Nissan won't look at it because it is an import and I don't trust them anyway.

Link to comment
https://www.sau.com.au/forums/topic/453904-electricalignition-problem/
Share on other sites

You might also want to read this thread

http://my350z.com/forum/maintenance-and-repair/307878-sputtering-during-warm-up-39.html

The general consensus on the 350z forum is the VTC system being too sensitive to motor oil viscosity. Some said to open up the VTC and clean it up, some said they tried a few different motor oil and problem was mostly gone. Or as Andrew said above, that thread had a firmware update.

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

    • Breather for it. If it's anything like the GTRs it should run up to the top of a bellhousing bolt.
    • What basics? With these OBD1 ECUs it's not like the ECU will give you any real clues, it's not really doing any sanity checking of sensors/sensor data. My experience is actually a lot of sensors tend to be the source of the issue first and foremost, and checking everything gives you a direction to investigate. MAF/O2/STFT/LTFT should all kind of make sense. You can try little tricks of the trade like tapping the MAFs to see if it triggers a stumble, things like that. But once you've done a compression test knowing whether you have an air leak or fuel delivery problem is kind of hard to narrow down without sensor data. And you don't really know if all your sensors are making sense unless you can interrogate the ECU directly about what it's seeing for sensor data.
    • Absolutely this. Yes, except not vacuum hose. Something oil/fuel safe is a better idea.
    • Like a Stagea, but not as cool! Hope you have enough garage space for this, or is something going to leave to make way for it?
    • The new project has arrived. I have wanted one of these for such a long time, well before that meathead Clarkson drove one in Africa. I really wanted an E34 but I have some medical issues that mean I *really* can't bump my head and the lack of airbags in the E34 made it just too big of a risk.  I don't know why I've always liked these older touring BMW's to be honest, but man I love this car. She's been pretty well maintained for her 243k's with what appears to be only a single oil leak at the oil filter housing gasket. It has a bunch of updates including later model bumper and headlights, 7 series billion-way adjustable seats and it came with a few spares and another set of wheels with legal tyres. I got a unregistered car permit from the RTA and drove it back from Canberra on Saturday.                   First cab off the rank is cleaning it up for blue slip. I dont know how picky they'll be but I figured I'd clean the headlights, fix the oil filter housing gasket, replace the speed sensors (throwing errors) and swap the OE wheels (the M Sport wheels have a big chunk out of one of the tyres.) I also need to replace all 6 gas struts - 2 for bonnet, 2 for hatch and 2 for hatch glass. The car tries to eat me whenever i open any of these. My plan for this car; Ultimately, this is a budget car. I can't afford to throw lots at it and its because I have another car that I got this, if something breaks its no big deal. I will just maintain and repair it really. But eventually I want to do a manual conversion. It actually looks pretty straight forward for E39's and the trickiest part will be sourcing the parts.  I do need to replace some suspension arms or bushes because wow, she's a floaty old girl. She's also fantastically slow. Like really, really slow. When pulling back out on to the freeway on Sat after a quick pull over I needed to wait until no cars were visible before going.  Oh, and the guy I bought it from had a gorgeous R31 GTS-X in the garage. 
×
×
  • Create New...