coupe-r

Yup exactly, except when using a 1:1 converter when the 4wd Ecu expects 2:3 results in MORE TPS voltage... ill measure with a multimeter. link guys know else they wouldn’t have made the dip switch, I’m waiting for their guru input.

Regarding the TPS output sensor that Haltec offers, did you notice it Specifically says for R34? I assume its a 1:1 TPS output scale. https://www.haltech.com/product/ht-038001-nissan-attesa-4wd-tps-adaptor/ R32/33 seem to input to the 4WD ECU at a scale of 2/3 or so the Link manual states this? I assume when using a scale of 1:1 then the 4WD ECU of the R32 will see MORE TPS voltage than it usually would for a given throttle angle. Unsure the effects of this, but maybe MORE is sent to the front wheels than normally would be? What say you Link Gurus?

Agreed its hard to tell just from that screen shot, and in the values you are looking at (less than 1 second) its not fluctuating much. I'll get the owner to review this post.

Ok cool so all our settings are correct then. No dice... its getting power and ground, plus its wired correctly. I asked him about the gap which is says is correct. Starting to look like failed sensor He could use the AEM EPM but thats giving rubbish readings also; its been sent back to AEM but they state nothing wrong with it.... Its a 24-1 optical sensor I believe. I guess he REALLY needs to scope the output from it (can't on G4 plugin correct?) This is with engine idling stable but RPM all over the place. (at higher RPM it jumps 1000rpm!)

Also should pullup be ON and edge falling? Tried both combos but nothing. Car is running on the AEM EPM trigger, hmmmm

" (Honda use the signal inverted to what we do)" hah, i think honda use it inverted to how EVERYONE else does it. Hmmmm thats a curve ball then if you changed the pinout to reverse the signal. Ok he has put it back to B16 and B12, still nothing. However he hooked up his old AEM EPM which is a bit faulty (causes RPM spikes and issues) But he sees RPM now. starting to look like its the T1 trigger..

Hi there, helping a friend with a B18C Integra link G4 plug in. He has fitted a T1 Race developments Cam trigger setup (used to have an AEM EPM but it failed and gave issues) http://help.t1racedevelopment.com/support/solutions/folders/4000002167 His Trigger 1 setup is Hall/Optical: Filtering =LOW Pullup=ON Trig1 edge=falling Multi-Tooth position=cam Tooth Count=12 Trigger 2 is the same but cam pulse 1x While logging (with injectors disabled) he gets ZERO RPM and no trig errors. I have got him to post me pictures of the wiring and the trigger 1 (crank) goes to Pin B15 on the honda OBD1 B plug (CKPP) trigger 2 (cam) goes to pin B11 (CYLP) The wiring seems correct, ecu sees nothing. Power and ground are getting to the sensor, with the gap adjusted to 40 thou. Can't figure this one out. tried changing pull up on and off and changing rising and falling but no change. Also tried changing it to Crank driven and 6 teeth (but no change either)

We have the car running perfectly now. However still no trigger scope. Scope SHOULD work while cranking the engine and connected and logging to the ecu.

So i got the owner to log the voltages and the 3.3 internal is not above 3.3 volts. I'll see if he can post the log here.

We will try this tonight. So internal ecu issue? (or software?)

Just to update this thread the car is running and idling with no trigger errors.

Ok the reason is because on a LC1 the YELLOW WIRE IS THE 0-1V narrow band by default. Get a USB to serial (RS232) converter (a decent one) and download the logworks software and LM-programmer and re-program the analog 1 (YELLOW) to be 0v =7.35, 5v=22.39 http://www.innovatemotorsports.com/support.php OR just plug the BROWN WIRE into the ecu lambda 1. http://www.innovatemotorsports.com/support/manual/LC-1_Manual.pdf Make sure you have wired the SENSOR ground to the SENSOR ground of the link. DO NOT just join the power ground and sensor ground wires together from the LC-1. P.S Do a free air calibration with the sensor pulled out of the exhaust

Thanks Simon, I'm glad it's not user error at our end. I had a couple of tuners also say to me they can't get Xtreme G4+ Red to scope either. Hopefully you find the issue as we still need to fire this engine up and don't have a scope handy. Cheers

Thanks for clearing this up Scott! Good stuff. So far we have calibrated triggers and have it firing at TDC consistently. However link scope still doesn't work at all. (Are you SURE the early red xtreme ecu supported the scope triggers function?) ecu version should be in the attached map and log. cheers

Cheers for the relay advice b3tuning. I didn't wire the car, I am just helping a friend with initial start up. Andre Simon also confirmed they are a 2 AMP limit for Aux high drive. I did get the owner to measure current draw when firing the solenoid which was 0.6AMPS *2 is well under the current limit but i'll leave that up to the owner. Will post when we figure why link won't scope (the fact it logs RPM and cycles SURELY means we are seeing both triggers with no errors)