patmay Posted September 12, 2021 Report Share Posted September 12, 2021 ok so I've don 3 evenly spaced teeth on the crank and one pretty close to the middle of a crank tooth cycle on the cam. I've set up up for multi tooth on the crank but I'm not getting a crank rpm signal any ideas I'm getting power to the sensors Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 12, 2021 Report Share Posted September 12, 2021 Do trig 1 and trig 2 signal turn green and say yes? Can you attach a copy of the map. Quote Link to comment Share on other sites More sharing options...
patmay Posted September 12, 2021 Report Share Posted September 12, 2021 both say no and not green have just checked wiring and there's 12v to the sensors. j30a4.pcl Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 12, 2021 Report Share Posted September 12, 2021 If they are 3 wire sensors, set the trigger type to Optical/hall and turn the pull-up on. Quote Link to comment Share on other sites More sharing options...
patmay Posted September 12, 2021 Report Share Posted September 12, 2021 awesome that seems to have sorted it i could only turn over by hand as the starter battery is flat trigger 1 is triggering but trigger 2 isnt i will check wiring on it and go from there bloody ledgin mate thanks Quote Link to comment Share on other sites More sharing options...
bojanglos Posted October 13, 2021 Report Share Posted October 13, 2021 Have you solved the trigger where there was 24 teeth on the crank and 4 teeth on the cam. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 13, 2021 Report Share Posted October 13, 2021 The pattern this post was originally about was a 24-1-1 on crank and 3 teeth an the cam. There is another user further down that says has has 60-2 crank and 5 teeth on the cam. But I dont know of one with 24T crank and 4 teeth on the cam. Will need to see a scope to confirm. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 11, 2021 Report Share Posted November 11, 2021 hi team so its been a while since I've been playing engine tuner but I'm back to it and I'm having trouble with getting rpm, both triggers are arming crank has 3 teeth and cam has 1, the cam one is about half in between 2 of the crank teeth both sensors are hall sensors. ill crank and get around 200-300 rpm then ill crank again and get nothing, when i get it started and timed it runs well, Then i turn off and try to start again with no firing or just the odd back fire. below attached is the tune and a log file hopefully there's something I've done wrong that you can see otherwise i will have to have and auto electrician look a it up here in Hamilton. thanks again Pat j30a4 300zx map.pcl Log 6-11-21 7;38;41 pm.llg Log 10-11-21 5;11;52 pm.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 11, 2021 Report Share Posted November 11, 2021 When it is cranking with no or erratic RPM the cam "trig 2 signal" says "no". It would suggest there is a possibly a bad connection or too much air gap or something. You will really need someone with a scope to get to the bottom of it. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 11, 2021 Report Share Posted November 11, 2021 thanks for the fast reply i will try scope this weekend as for air gap youre meaning the distance between the sensor and the trigger node on the cam gear ? as that is factory distance Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 11, 2021 Report Share Posted November 11, 2021 12 hours ago, patmay said: as for air gap youre meaning the distance between the sensor and the trigger node on the cam gear ? as that is factory distance Did you measure it or are you assuming? Quote Link to comment Share on other sites More sharing options...
patmay Posted November 17, 2021 Report Share Posted November 17, 2021 ok so ive done a scope and the triggers seem good so my next thought is that its a wiring issue ive wired the injectors and coils the same so they are inj1 - 1&5 inj2 - 4&3 inj3 - 2&6 the coils are the same order and the firing order is 142536 would this configurationbe correct ? as for air gap yes they are all factory setups Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 17, 2021 Report Share Posted November 17, 2021 Coil wiring is correct, injection may or maynot be depending what injection mode you are using. That wont cause it not to start though. Can you attach a picture of the scope capture. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 17, 2021 Report Share Posted November 17, 2021 https://drive.google.com/file/d/1bYyz0_d2Br9grJKu0YEpoGmd1IbSzAKk/view?usp=drivesdk does this work if not do you have a Gmail I can send it to. Fuel inj is on multi group Thanks pat Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 17, 2021 Report Share Posted November 17, 2021 Injector wiring will be fine for mulitpoint group as it is. Your google drive link is restricted. If you go back to that file and click on share, then click the "change to anyone with the link" Quote Link to comment Share on other sites More sharing options...
patmay Posted November 17, 2021 Report Share Posted November 17, 2021 3 minutes ago, Adamw said: Injector wiring will be fine for mulitpoint group as it is. Your google drive link is restricted. If you go back to that file and click on share, then click the "change to anyone with the link" Sorted Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 17, 2021 Report Share Posted November 17, 2021 Is that the right file? I dont see anything here that looks like a trigger signal. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 17, 2021 Report Share Posted November 17, 2021 That's the trigger scope previously asked for Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 17, 2021 Report Share Posted November 17, 2021 That scope capture doesnot represent anything that looks like an acceptable trigger pattern at all. Something very wrong there. The red trace almost shows something that looks like a tooth but it also goes completely crazy in the same areas the blue trace goes crazy. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 17, 2021 Report Share Posted November 17, 2021 So severe interference or something along those lines Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 17, 2021 Report Share Posted November 17, 2021 Assuming Red is the crank, then there is no cam signal at all. If red is the cam then there is no crank signal at all. And yes, extreme noise as well, like starter motor current is going through the sensor ground or something. Quote Link to comment Share on other sites More sharing options...
patmay Posted November 20, 2021 Report Share Posted November 20, 2021 All sorted thanks to Adam and jase brown, turns out there was coil interference on the 12v feed so isolated that and had a much crisper trigger signal, re checked timing on pressure transducer and timing was off sorted that and she fired up straight away. Much appreciate the help from the link team it's good to get these small problems sorted, forever learning Thanks pat Quote Link to comment Share on other sites More sharing options...
Darrellc Posted July 7, 2022 Report Share Posted July 7, 2022 So was the cam and crank sensors hall effect sensors or VR (mag) sensors? Quote Link to comment Share on other sites More sharing options...
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