yoda598 Posted June 1, 2021 Share Posted June 1, 2021 anyone else ever had this issue? my pcm is pulling 2deg as soon as i touch the throttle. there is no knock, at all... not quite sure whats going on 😕  log attached 01-06-2021 07-06-31 PM Log pulling timing for no reason.teclog Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 4, 2021 Author Share Posted June 4, 2021 Still haven't figured this out. All torque reduction is stock, all knock sensor data is stock. It seems to be related to load. Anything under 1.0 load it'll pull half of what the max retard limit is. Anything over and it pulls the full amount. Have confirmed 100% no knock. Im assuming it's some sort of torque reduction. It only happens after I give it a quick squirt then it does it untill I turn it off and on again. Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted June 4, 2021 Share Posted June 4, 2021 How do you know its pulling timing? Can you post up your tune file so we can look at the spark tables and adders? Also do you have octane adder logic turned off? One that will catch a lot of people out is the tip in torque source which can pull timing if the turbo comes on aggresively. Can you do the log again with the spark adder set to high priority (right click and set high priority on it). Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 4, 2021 Author Share Posted June 4, 2021 Will do another log tonight. You can feel the difference in response/power. I believe it is yes, but I'll post the tune and log tonight. Quote Link to comment Share on other sites More sharing options...
finnigan001 Posted June 4, 2021 Share Posted June 4, 2021 3 hours ago, Roland@pcmtec said: tip in torque source which can pull timing if the turbo comes on aggresively. Just curious to know if this shows up in "spark adder average for all cylinders" along with normal knock adjustment from the knock sensors in logging. Or is just seen as a dip in the "total spark" number. Have always wondered and assumed that it was the later. Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 4, 2021 Author Share Posted June 4, 2021 fresh from tonight. i dont remember if i went 100% throttle or just cruised but im sure the log will show.  p.s dont laugh at my tune lol, its a bf gassy with studs and springs with a pulsar 3584.   04-06-2021 05-50-33 PM Log for pcmtec forum.teclog PCM92CA 4.6.21 chasing that 4. tipin off.tec Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 7, 2021 Author Share Posted June 7, 2021 It's a knock sensor fault code 😕 Quote Link to comment Share on other sites More sharing options...
Puffwagon Posted June 7, 2021 Share Posted June 7, 2021 This one time I had my knock sensors unplugged but forgot to switch them off in the tune. As such the tune was pulling the max amount of timing once it got on boost. Anyhow not sure if that's useful or not but mebbe you have an unplugged sensor or one is stuffed. Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 7, 2021 Author Share Posted June 7, 2021 yeah right. makes sense. the code is P0325 - Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor) funny thing is that it only threw the code back up when i returned the knock data/sensitivity back to stock. when i was using my desensitised settings it didnt throw the code. 1 Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted June 7, 2021 Share Posted June 7, 2021 There will be a limit for P0325 where if it pulls max timing for > x seconds it throws the code. If you desensitise and don't adjust the limit then it wont throw the code. Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 8, 2021 Author Share Posted June 8, 2021 I'll give it a try Tonight. Is the limit adjustable? Would you happen to know where I would find it? Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted June 8, 2021 Share Posted June 8, 2021 I had a look and couldn't see what it was using easily sorry. Quote Link to comment Share on other sites More sharing options...
yoda598 Posted June 8, 2021 Author Share Posted June 8, 2021 all good mate, thanks for the help. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.