d-worxs danny Posted May 21, 2021 Report Share Posted May 21, 2021 hey boys this what's happening car starts fine but after engine running and warm warm i notice trigger1 error start count would that meams the sensor its seem extra tooth on the count? or bad sensor? the other issue is pc link disconect it self from ecu while i'm attempt to start the engine and sometimes while it running any tough would be apreciatte thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 21, 2021 Report Share Posted May 21, 2021 Please do a triggerscope when the error is occuring and that will probably give us some clues. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 21, 2021 Author Report Share Posted May 21, 2021 thanks for the reply so quickly i'm trying to do so but it disconect right at the time i'm cranking Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 21, 2021 Report Share Posted May 21, 2021 If you pull the cover off the ecu case a watch the LED doesnt turn off during cranking. If it does you likely have a voltage drop on the ignition switch circuit. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 21, 2021 Author Report Share Posted May 21, 2021 could not get it to do trigger scope but here is log file if helps PC Datalog - 2021-05-21 7;23;12 pm.llgx got the trigger scope for you TriggerScopeLog.llgx Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 21, 2021 Author Report Share Posted May 21, 2021 this one here is with engine running at the exactly moment that this error start to happenig TriggerScopeLog 2.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 22, 2021 Report Share Posted May 22, 2021 Your voltage on trigger 1 (crank sensor) is too low - only about 2.0V. It should be more like 4-5V. This means it sometimes doesnot meet the arming threshold so some teeth are ignored. In the pic below, the blue trace (Trigger Scope 1) is the actual signal coming in on the ecu pin. The white trace above it (trig 1 signal) is the signal being sent to the micro after the trigger circuit has processed it. It should rise when the arming threshold has been exceded and fall when the low threshold is reached. There should be a white "tooth" of about the same width above every blue tooth if the signal is good. You can see in some areas the trig 1 signal never rises so this means the arming threshold was not met - this means the micro receives less teeth than it is expecting and throws the trigger error. Try turning the pull-up on if it is not currently on. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 25, 2021 Author Report Share Posted May 25, 2021 so i have the pullup on already this could possible to be ground failure ? or more likely wiring issue? Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 25, 2021 Report Share Posted May 25, 2021 It is not a ground issue. It could potentially be a wiring issue I guess, if some sensors are mis-wired they will sink a lot more current on the signal pin. Can you show us how the crank sensor is wired to the factory loom. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 25, 2021 Author Report Share Posted May 25, 2021 picture number 5 on this pdf is how i wire it TRIGGER-INSTRUCTIONS-REV2-N.pdf Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 25, 2021 Report Share Posted May 25, 2021 I wanted to see your wiring to check it, not the instructions. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 25, 2021 Author Report Share Posted May 25, 2021 there you go trigger 1 going into the red wire and trigger 2 going into the green, power coming from the black and white, ground its the black Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 25, 2021 Author Report Share Posted May 25, 2021 Adam i might find out the problem here under runtime values i find the 5V out (V) reading at 5.03V but no fault code show on pc link under the help menu fault code 74 its 5V supply error Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 25, 2021 Report Share Posted May 25, 2021 Your wiring kind of looks ok. Its still odd that the cam sensor goes to 3.5V but the crank sensor only goes to 2V, when they are the same type of sensor connected to the same supply. 9 hours ago, daniel stf said: Adam i might find out the problem here under runtime values i find the 5V out (V) reading at 5.03V but no fault code show on pc link under the help menu fault code 74 its 5V supply error 5.03V is perfectly fine. The next thing I would do is add a 1.5Kohm pull-up resistor between the 12V and trig 1 wire, something like pic below. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted May 26, 2021 Author Report Share Posted May 26, 2021 problem solved thank you for the tips Quote Link to comment Share on other sites More sharing options...
Nismology Posted June 22, 2021 Report Share Posted June 22, 2021 On 5/26/2021 at 7:56 PM, daniel stf said: problem solved thank you for the tips So what solved the issue? Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 22, 2021 Report Share Posted June 22, 2021 He fitted the external pull-up resistor as the post above suggested. Quote Link to comment Share on other sites More sharing options...
d-worxs danny Posted September 7, 2021 Author Report Share Posted September 7, 2021 i did add a resistor and solved the issue for few weeks but the problem came back so i replace the cam cherry sensor and remove the resistor to see how it does and never had problems since look like bad sensor maybe my previous wiring job was not to good and damage the sensor? or maybe it just went bad on its own? not sure but the problem its solved Quote Link to comment Share on other sites More sharing options...
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