Cars interesting problems- need ideas

juld0zer · 11-06-2014, 09:38 AM

do you have Uprev to datalog? if you do, datalog every time you drive the car. it's annoying but i finally captured the lead up to one of my lag events all the way thru to where it was actually happening until i reached my destination. Downside is that nothing stood out like a sore thumb but in depth analysis showed some leads which im still exploring.

a failing pump will show a lean AFR so datalog that, accelerator pedal sensor, throttle position sensor (these 2 you use together to ascertain your command vs the 'response' in terms of what the ecu gives you), both IVT solenoid duty, both cam sensors, rpm, vehicle speed, coolant and oil temp, both VVEL angles plus voltages, maf voltages. you can add MAP, load and a few others

failing pump would cause stuttering too.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Feb1 Nissan IDX 510 cars at cars coffee irvine and Brock Morton At Peterson museum	370ZRR	Southern California Region	4	02-10-2014 10:03 AM
interesting	kensnismo	Other Vehicles	1	02-04-2014 11:12 AM
Ok, this is interesting..	Apoc370z	Nissan 370Z General Discussions	11	11-22-2013 02:16 PM
Interesting..	Vertigo	Other Vehicles	7	11-16-2013 04:37 AM
Interesting info on the RX-9	mjd77	Other Vehicles	10	05-27-2011 07:19 AM

11-06-2014, 09:38 AM	#9 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 140	do you have Uprev to datalog? if you do, datalog every time you drive the car. it's annoying but i finally captured the lead up to one of my lag events all the way thru to where it was actually happening until i reached my destination. Downside is that nothing stood out like a sore thumb but in depth analysis showed some leads which im still exploring. a failing pump will show a lean AFR so datalog that, accelerator pedal sensor, throttle position sensor (these 2 you use together to ascertain your command vs the 'response' in terms of what the ecu gives you), both IVT solenoid duty, both cam sensors, rpm, vehicle speed, coolant and oil temp, both VVEL angles plus voltages, maf voltages. you can add MAP, load and a few others failing pump would cause stuttering too.