Cammsport

Service plan for the throttle actuator fault code, assuming it wasn't battery disconnect related.

New Exide Extreme. 750 CCA, 80ah. 14 degrees outside. Ive checked the injectors are getting a signal. Back to the drawing board 😓 20220616_133431.mp4 I got the fault codes below after connecting the battery and firing up ISTA. Weirdly, the 4 bottom codes look to have come up 2kms before it's final rest. The car is currently at 169,178kms and hasn't driven since the start of this saga. I cleared them, disconnected ISTA, ignition off, attempted start of the car, connected ISTA, no fault codes showing now. But still, no start. I'm getting the exclamation mark and CEL when I press the ignition, but no fault codes on ISTA or the OBC (after I cleared them the first time). That throttle body fault is bugging me. I ran through the ISTA diagnostics for it though and it all checked out OK. So maybe it's a battery disconnect/connect thing that upsets it? Unsure where to go from here. Compression check and timing? Biggish jobs with having to remove the injectors and the valve cover (after removing all the stuff on top).

I think a new battery is in order either way. Its almost 10 years old, undersized and negative temperatures. I'll get a new Varta F18 from Battery Town tomorrow. Not a bad innings considering the average lifespan is 5 years according to forums. Doesn't seem to have IBS either. If this honestly fixes it, you'll hear the sigh of relief from your place.

Might have to hold off for the day. That shed would be handy 😅

I'm buying everyone beers if its the battery. Going to get a new battery tomorrow and give it a crack. Wouldn't be the first time I've looked past something so easy.

I'll take a better video of the cranking tomorrow for about 10 seconds. I'll do it from the cabin so you can hear it like-for-like for the daily N47 drivers. Bad compression from a stretched chain is very plausible on these engines. Just to reiterate, I don't think it is the glow plugs. I'll look into the cam timing and compression checks. Thanks for the replies by the way.

Yip tested. Got about 9v. 6ohms across the glow plug itself

No glow plug codes since I removed and tested that 1 and then reset codes.

I could do but the chain must be there for the cams to be turning.

Next thing on the list, has the chain snapped? I took out the camshaft position sensor to look at the cam gear. Found the issue.. So I thought. By the looks of that, I thought the chain had come off the teeth. Turned it over just to double check. 20220611_123602.mp4 I've been so desperate to find something wrong, I wasn't thinking. Back to the fault finding then. Tested the hall effect cam gear sensor by back probing the socket. All looks to be good. 20220611_132046.mp4 Having a rest now. No room in the garage and the snowns coming in. More google/forums/YT it is then.

Took a video to answer your post, but yes, RPM signal showing Battery is as healthy as an older battery can be. It's not new but charges well and holds good voltage. The video shoes 14v due to it being hooked up to the E91 but usually sits around 12.5v. 20220611_120143.mp4

Bring back the old school rear-facing 3rd row like MB (or the Tesla Model S has) and I'm all in! Once I win the lotto.

Finally managed to get ISTA/D! Absolute game changer. Read the codes and got the following: 483D DDE:THROTTLE ACTUATOR 4A6E DDE: GLOW PLUG CYLINDER 1 ACTIVATION A0B3 CAS: STARTER MOTOR, TERMINAL 50 The glow plug cylinder one will be from me probing it to check voltage. The starter one will be from a momentary low voltage. The last one, throttle actuator, ran through the ISTA troubleshooting schedule and it all opened and closed on the commands and tolerances were good. Cleared the codes, gave it two long starts again but now no codes are showing 🤯 Checked the supply fuel pressure and the rail pressure and all seems good. Unsure what my next move is. I'll see if there's a way to test the injectors. I'm worried there's an issue with the chain, that'd be worst case.

In the process now of downloading/installing ISTA. INPA wasn't compatible with DDE 6.0 (or was it 7.0 🧐 After some more digging (I could be grasping at straws here), the 483d throttle actuator code can be thrown if the engines sensed an over-run on shut down. Basically saying it had to use the throttle body to kill the engine vs the injectors doing it. So my job for the weekend is to strip the intake side of things and get rid of the gunk/soot/oil, clean the egr etc and go from there. Hopefully by then I'll have ISTA running too.

I'll continue to post results from fault finding for a sanity check and to see if it raises any flags for anyone. -Fuel pump can be heard priming, fuel pressure at rail, fuel pressure coming back from cylinder via injector leak. We have fuel. -9v at the glow plug lead. #1 Glow plug reads 0.6ohms (pretty sure it's 6 and my multimeter is stepping incorrectly, will test the others tomorrow). -Ether sprayed into intake (not recommended I know) and no combustion. -Throttle body is wide open on start.

I honestly would love to cause I've had enough. But we live in Central Otago now.

Hi all, recently just bought a 2007 E87 120d. The car was great. 160,000kms. Well serviced at BMW and another mechanics. Couldn't fault it at all. Picked it up from Christchurch and made the 450km journey to the deep south. Car had multiple start stops etc and again, no dramas or faults whatsoever. I get up the next day (real cold morning), go to start the new daily aaannnnd... No good. Car cranks but won't fire. I've done a heap of research and figured it was probably the glow plugs or glow plug controller. I got the local mechanic to come and scan the car. Had a heap of random faults which was expected, cleared them and then no faults came up after 2 or 3 attempted starts. I disconnected the battery and waited a minute. Hooked it back up and tried starting again. Read the codes and the only one that came up was 483D Throttle Actuator. No glow plug codes. Fuel pump can be activated and there's fuel at the rail. To make matters worse, one of the injectors looked as though it has or had a slight leak due to the varnishing around the top. I tried to pull but couldn't. Tried to reinstall it but the leak was definitely worse. Tried to remove it again and I've cracked the plug on the injector. I'm gutted. Anyone have any diesel experience? Know what my next move should be? Any help is hugely appreciated.

Unfortunately/fortunately the body is straight and well serviced. Mostly after engine parts. I'll start a thread so I don't clog this one. Thanks for your help though everyone!

Where are you good people sourcing your E87 parts from? Nil support from FCP and they don't intend to support non US market cars according to their email. From the loving new owner of a dirty 120d.

Wait, do you think there's separate grids for the NI and SI? The HVDC cables travel from Benmore to Welly and back. Most of the MWs travel north to the load heavy North Island from the generation rich South Island. Closing Tiwai smelter would free up MWs (approximately 500MWh) from Manapori to be used elsewhere on the grid (but other issues would arise beyond the energy sector). I think smart meters for car chargers is a brilliant idea if your electricity supplier let's you have the wholesale price. During winter, the wholesale price can be as low as $0.01 at night. This would lower household electricity bills and stop constraints on the grid (which also drives up energy prices) during peak periods.

And it starts! Although hesitant. Turned it off and starts fine now. Unsure as to what would have cause it but I want to nail it before the family gets stuck somewhere. I'll have a look a what relays fire the pump and see if they may have been getting sticky after sitting for 1 week. Or perhaps a tired fuel pump? Thanks heaps @Twistee, I was running pretty low on patience at the time. Also a HUGE thanks to @M3AN for taking the time to show me how to use INPA the other day. Long live the forums. 20220409_212121.mp4

Interesting development. With fuel pump activated via INPA, engine *almost* started. I'm in with a sniff now.

Thanks heaps for that @Twistee! This is exactly what I'm after. I'll start working through it.

Has spark and I can hear fuel pump prime when triggered by INPA. Fuel pressure at the rail.

Also, does anyone know the duty cycle of these starters?