That328i Posted March 25, 2021 Report Share Posted March 25, 2021 Okay so I have an m52 converted obd1 with a pnp link. It cranks but doesn’t start. Injectors are firing fuel. Coil packs don’t seem to fire. I can go into settings and fire each coil pack separate along with injectors. I calibrated map and tps. I noticed I have no rpm signal when cranking and I’m assuming that’s why the coils aren’t firing. Now my cams are degreed and I running 800cc injectors. I wouldn’t think that my problem but who knows. I’m currently running the off the self basemap the ecu comes with. Quote Link to comment Share on other sites More sharing options...
CallMePuff Posted March 25, 2021 Report Share Posted March 25, 2021 If you're not getting an RPM signal while cranking, it's likely a crank position sensor issue, although usually if the crank position sensor isn't detecting anything, the injectors won't fire. Quote Link to comment Share on other sites More sharing options...
That328i Posted March 25, 2021 Author Report Share Posted March 25, 2021 I’ll try replacing the sensor and seeing if that fixes it. Quote Link to comment Share on other sites More sharing options...
Rossogy Posted March 25, 2021 Report Share Posted March 25, 2021 are you using the OBD1 Crank sensor? Quote Link to comment Share on other sites More sharing options...
That328i Posted March 25, 2021 Author Report Share Posted March 25, 2021 Yes, I swapped over crank, cam and knock sensors Quote Link to comment Share on other sites More sharing options...
Rossogy Posted March 25, 2021 Report Share Posted March 25, 2021 Have you tried using the Trigger Scope function? It will let you know if its seeing anything Quote Link to comment Share on other sites More sharing options...
That328i Posted March 25, 2021 Author Report Share Posted March 25, 2021 No I haven’t. We’re can I find that function? Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 25, 2021 Report Share Posted March 25, 2021 Please do a triggerscope while cranking and also a PC log of it cranking. Attach both of those and a copy of your tune here. How to trigger scope: https://1drv.ms/v/s!AiYbYlZQuRHPmidU5V2CmTcv6t2y?e=AVQD2V How to PC Log: https://www.youtube.com/watch?v=_P1LRANeO4A Quote Link to comment Share on other sites More sharing options...
That328i Posted March 25, 2021 Author Report Share Posted March 25, 2021 Trigger Scope Log 2021-03-25 6;06;04 pm.llg Log 2021-03-25 6;10;03 pm.llg im running the basemap provided by link, only change was i changed trigger wheel to m52 to match my motor, there was not change when using it on multitooth and base setting Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 25, 2021 Report Share Posted March 25, 2021 Your triggerscope suggests you have trigger 1 set to hall effect, but your engine has a reluctor sensor. Can you load the E36 base map back in and do a new log and scope without changing any trigger settings. Quote Link to comment Share on other sites More sharing options...
That328i Posted March 25, 2021 Author Report Share Posted March 25, 2021 Yes will update when I get back home. Quote Link to comment Share on other sites More sharing options...
pugsparked Posted March 26, 2021 Report Share Posted March 26, 2021 Quote Link to comment Share on other sites More sharing options...
That328i Posted March 26, 2021 Author Report Share Posted March 26, 2021 updated basemap to links provided version with is untouched attached is log requested Trigger Scope Log 2.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 26, 2021 Report Share Posted March 26, 2021 Ok, Crank signal looks good now, but no cam signal. Have you fitted the M50 vanos cam sensor? Quote Link to comment Share on other sites More sharing options...
That328i Posted March 26, 2021 Author Report Share Posted March 26, 2021 yes i have, ill try and locate a new sensor Quote Link to comment Share on other sites More sharing options...
That328i Posted March 26, 2021 Author Report Share Posted March 26, 2021 It seems that I won’t be able to get a new m50vanos cam sensor for atleast 4 days. Does an m52 sensor work my chance? Or can I get it to work? Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 26, 2021 Report Share Posted March 26, 2021 56 minutes ago, That328i said: Does an m52 sensor work my chance? If it was from an engine which originally had a Siemens ecu then no. If it had a bosch ecu then probably. Although VANOS wont work if it is a reluctor sensor. Note even with no cam sensor it wont stop it from running - it will just be more difficult to start as sometimes it will sync on the wrong phase and it will spark on exhaust stroke rather than compression stroke. You should have spark now that the crank sensor is set up correctly - even with no cam sensor. Quote Link to comment Share on other sites More sharing options...
That328i Posted March 27, 2021 Author Report Share Posted March 27, 2021 I’ll try again but it wasn’t even trying to start Quote Link to comment Share on other sites More sharing options...
That328i Posted March 27, 2021 Author Report Share Posted March 27, 2021 I forgot to mention, my cams are retarded/advanced. I take is advanced 2 degrees and exhaust is retarded 8 degrees. Could it be to far out for the basemap to let it run? Quote Link to comment Share on other sites More sharing options...
That328i Posted March 27, 2021 Author Report Share Posted March 27, 2021 okay so i have a known good cam sensor in the car now. Scope looks better to me. still not remotely trying to start tho. Trigger Scope Log 3.llg also i noticed when cranking and watching pclink im not getting and rpm input Quote Link to comment Share on other sites More sharing options...
That328i Posted March 27, 2021 Author Report Share Posted March 27, 2021 I pulled coil packs and grounded them. I have no spark at crank. I know my grounds good while testing because I turned the coil pack in in test mode and it worked. Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 27, 2021 Report Share Posted March 27, 2021 You still have no cam signal. But that wont stop it from sparking or from showing RPM so something else is wrong. Can you please do a short log of it cranking and attach that and your map here. Quote Link to comment Share on other sites More sharing options...
That328i Posted March 28, 2021 Author Report Share Posted March 28, 2021 log file 2.llg BMW E36 G4+ provided basemap.pclr log and basemap currently being used Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 28, 2021 Report Share Posted March 28, 2021 Ok, that is odd. I dont see a reason for no RPM, except for the no cam signal. I was pretty sure cam level sync mode didnt need a cam signal to work though. Can you try setting trig 2 sync mode to none and see if you then have RPM when cranking. If still no RPM, please do another triggerscope while cranking. Quote Link to comment Share on other sites More sharing options...
That328i Posted March 28, 2021 Author Report Share Posted March 28, 2021 Set to none car fired and shut off 100% better just need to idle now. Also I have rpm signal now Quote Link to comment Share on other sites More sharing options...
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