VZ Commodore P0201 Injector Code - You Won't Guess The Fault!

[@FuManchu5ltr]

Someone on Just Commodores made a bracket that relocates the ECM to mount on the ABS, no wiring mods required. Quite clever.

[@MiracleMAX]

Good to know!

[@FuManchu5ltr]

I’d also suggest doing the PCV mod that solves oiling issues with them. When the PCV is blocked we can see oil coming out of every weak point in the crank case or otherwise. Top hole should be drilled out to 3mm and the bottom two holes drilled out to 2mm. It’s a solid fix. A blocked and undersized PCV flow could well be forcing oil through a compromised Oil Pressure Sensor.

[@MiracleMAX]

Yes they did have blockages there. I cleaned them out when I did the spark plugs and coils. kzbin.info/www/bejne/omTNgnWmprRph8U

[@nevillegoddard4966]

@@FuManchu5ltr Yeah, that's right, & plus I put a air/oil separator can in the crankcase to inlet path, to reduce carbon build-up. Some may call it a 'catch can', but mine has a pipe & tap, where I can drain it into a container. I've heard catch cans just send the oily mist to atmosphere. My can is normally sealed.

[@MiracleMAX]

@@nevillegoddard4966 The catch can does not release the emissions to atmosphere. It separates oil, hydrocarbons, soot, and condensation from the crankcase gasses, recirculating the filtered gasses back into the intake system.

[@nevillegoddard4966]

@@MiracleMAX Oh right! Good to know! Thanks! Anyway, they're a good idea especially on Direct-Injected engines, & I was pleased to learn the timing chains of my VZ alloytec still aren't 'rattly' yet. Hey, & thanks heaps Miracle Max! - I changed my leaking, growly water pump a coupla weeks ago on the same engine with the aid of one of your videos - Well done! Cheers!

[@MiracleMAX]

@@nevillegoddard4966 Great to hear that the video was helpful 👍

[@FuManchu5ltr]

Another cracking good video Max.

[@MiracleMAX]

Cheers. Thanks! 😁

[@JonnyFix]

Scan tools dropping functionality....... that's flippin cheeky! I would 100% expect/demand that for the $1200+ worth of update licence I would have legacy support indefinitely.

[@MiracleMAX]

Yup, it's getting worse with also now having to purchase secure gateway access as well. Customers might complain about the cost of repair, but we have to gain access to all sorts of data and information to repair their vehicles and that money has to come from somewhere. Everyone is selling products with less quantity (even scan tools) for the same price or more. It's not getting better, that's for sure! 🤔

[@nigelwebber1472]

Thx MM. Another enjoyable video.

[@MiracleMAX]

Thanks Nigel! 😊

[@RoverIAC]

Delay in acceleration. My HQ has a similar problem. It comes standard with the banjo diff. (I've got that same multi-meter, it's over 20 years old)

[@MiracleMAX]

Thanks for your comment

[@MrConspark]

Great video Max. I found this on the TaT repair solutions when i had a VZ v6 in for a similar fault (intermittent no start). Replaced the sensor and checked at the ecm plug, found no oil, but i didnt check the cam sensors 😯 I did replace the crank sensor and seems to have lasted a few months now without further faults, fingers crossed. These can also get coolant through a failing ect sensor. Cheers mate

[@MiracleMAX]

Sounds like they leak like a sieve! Any conductive fluid and electricity is not a great mix ☹️

[@krystal5887]

Those VZ ECM's are notorious for playing up according to my auto electrician, he replaced mine with one I purchased new from Zupps. The engine had a miss when hot, I could always get it to play up by heating the ECM with a heat gun, that's how I proved it was the ECM. The auto electrician said that the replacement ECM is an upgraded unit and are far more reliable than the original.

[@MiracleMAX]

Good info. Thanks 👍 I'm working on a VE Commodore at the moment using the heat gun to get it to play up. Very intermittent.

[@krystal5887]

@@MiracleMAX When I pulled the faulty one apart, using a microscope I noticed that some of the fine wires that went to the sockets looked as though they were touching, whether that was causing the problem or not I'm not sure. The car was fixed so I didn't want to mess with it.

[@MiracleMAX]

@@krystal5887 I like to pull things apart after the repair to figure out it's demise. 🤔

[@ScatManAust]

Gee Max, You have me worried now. I have got to do the same thing with my Crewman. I have many scan tools and two of them that I was going to use was either my G-Scan or G-Scan2. The scan-2 has been updated till 2020 so hopefully will still have the required software. I may play it safe and use the old faithful G-Scan as that has not been updated since 2014. Thats plain wrong on the manufactures side especially the ridiculous price to update the machines. Not sure on the price now, but as of 2020 the updates were $750 for either of the G-Scans. Needless to say, I never updated as $750 is better spent on upgrading to the G-Scan3 and with that will have up to date software as well as probably two years of future updates. My guess is there is not the capacity of these tools to have all the old as well as the new software on at the same time, so some has to go. Definitely something to quiz the supplier about if and when I bite the bullet. So, was the coils and other work really required before? Great video as usual there Max

[@MiracleMAX]

They are making it more difficult for us. Charging more, but cutting out the older vehicles, which most of us are still working on. One scan tool will just not cut it and it also makes you think about whether you should get rid of the older scan tools that you might have or not. The other video about the ignition coil replacement on this vehicle is here. kzbin.info/www/bejne/omTNgnWmprRph8U Yes, one of the 'new' coils had failed. 🤔

[@RichieRich845]

👍

[@MiracleMAX]

Thanks Rich 😉