Plumbs Posted August 7, 2021 Share Posted August 7, 2021 Hi all, Just need info please and I have looked around but no luck . But for Tuner nerd knock , monitor , I need positive and negative inputs for number 1 injector wires for rpm data ? I know I could disconnect number 1 wire and find positive with a multi meter . But if somebody knows off the top of their head that would be great ? Thanks in advance Graham . Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted August 7, 2021 Share Posted August 7, 2021 Stab the pickup into the coil wire and use that instead, in my experience it works a lot better. Also be careful sticking a probe into your map/boost sensor. I had issues with the boost sensor not reading properly causing it to run up to 15psi more than commanded. Quote Link to comment Share on other sites More sharing options...
Plumbs Posted August 7, 2021 Author Share Posted August 7, 2021 1 hour ago, Puffwagon said: Stab the pickup into the coil wire and use that instead, in my experience it works a lot better. Also be careful sticking a probe into your map/boost sensor. I had issues with the boost sensor not reading properly causing it to run up to 15psi more than commanded. Hi Puffwagan , thanks heaps . I really appreciate your help ! I would have blown her up by now if it was for your small but important pieces of info! Thought I would share a potential blow your engine up moment that happened to me today . I had a cheap Chinese boost actuator installed. And I had a turbo smart 12 psi actuator off my F6 sitting in the cupboard. So I pulled it apart and took out the 5 psi spring ( centre one ) to make 7psi . However, being a learner , I didn’t tighten up properly and there was a huge boost leak in the actuator itself ! So luckily I pulled 5 deg of timing from the whole load block above 2500 rpm. As I had a run away turbine and saw crazy boost pressure of up to 19 psi !! must say that $300 I spend on the 3 r 23 aa , turbo rods and pistons were worth the insurance today !! Anyway fixed now and motor is still purring away !! Phew !! Leaving at 11 psi and I’ll use the knock monitor to check timing as I’ve seen the pcm pull timing even down to 4 deg . So it seems unreliable to tune for knock on the stock knock sensor that I can see ? regards Graham! Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted April 8, 2022 Share Posted April 8, 2022 On 8/7/2021 at 7:17 PM, Puffwagon said: Stab the pickup into the coil wire and use that instead, in my experience it works a lot better. Also be careful sticking a probe into your map/boost sensor. I had issues with the boost sensor not reading properly causing it to run up to 15psi more than commanded. dosent the coil fire multiple times at idle for the barra? Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted April 8, 2022 Share Posted April 8, 2022 It is something I have seen in the tune and can be changed. That aside, it doesn't seems to affect the rpm pickup. 1 Quote Link to comment Share on other sites More sharing options...
hjtrbo Posted January 1, 2023 Share Posted January 1, 2023 Hmmm, same shit happening here. Cant get a stable RPM signal. V3 Pro. Tried your suggestion @Puffwagon, no bueno. Have reached out to customer support. Will see what I get back. For reference I have tried injector #1 and coil pack #1. For both cases I tried at the PCM connector and at the injector / coil itself. Verified the appropriate settings selected in software for injector or coil rpm method. Swapped those 2 probes around for good measure as well. For the ground side I have tried engine block, PCM case ground, PCM sig ground, chassis ground. Have also kept all TN wiring away from all other wiring. Have tried the knock box inside and outside the car. Laptop is on battery so no AC connected. Nothing makes a difference. Unable to do a firmware update as I have an older version that does not have the lock icon on the microcontroller. Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted January 1, 2023 Share Posted January 1, 2023 Verify the ground is getting to the actual box. I have a feeling the pokey bit might break inside the plastic. Quote Link to comment Share on other sites More sharing options...
hjtrbo Posted January 1, 2023 Share Posted January 1, 2023 Will do. Will check all the others too. Cheers man. 1 Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted January 1, 2023 Share Posted January 1, 2023 i might check the ground wire also. i never got mine reading rpm right. i ended up just having the audible alert and trying to remember where it was. Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted January 1, 2023 Share Posted January 1, 2023 I would check out the multi fire at idle, although I reckoned it didn't affect it, maybe it does. It is set to 1200rpm from memory, set it to 500 and it should rule that out. Quote Link to comment Share on other sites More sharing options...
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