Strange issue v2.
#1
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Strange issue v2.
So today I was going to do some work on my car and it got worse.
Basically last weekend I changed my CAS oring to get rid of the oil leak coming from it. When i did this i didnt have my laptop with me to sync timing but it ran just as it had before so i limped it home and parked it for the week.
Fast forward to now...
Today i go out with the laptop to sync timing and the car starts up REALLY weird... like it would barely idle and lope from 1000-2000. i check the timing and when i have it locked to 10 degrees it isnt even close to the timing marker at all! it seems like it is retarded a significant amount.
this is also the first time i have plugged the laptop in since getting a professional dyno tune.
If i sync timing on the crank to the ECU the car doesnt run any better, but it also doesnt run any worse.
i would load a log of the car idle and running but i cant load it here.
Any ideas?
My tune is still in there from the professional, and the afr's are the same.
Matt
Basically last weekend I changed my CAS oring to get rid of the oil leak coming from it. When i did this i didnt have my laptop with me to sync timing but it ran just as it had before so i limped it home and parked it for the week.
Fast forward to now...
Today i go out with the laptop to sync timing and the car starts up REALLY weird... like it would barely idle and lope from 1000-2000. i check the timing and when i have it locked to 10 degrees it isnt even close to the timing marker at all! it seems like it is retarded a significant amount.
this is also the first time i have plugged the laptop in since getting a professional dyno tune.
If i sync timing on the crank to the ECU the car doesnt run any better, but it also doesnt run any worse.
i would load a log of the car idle and running but i cant load it here.
Any ideas?
My tune is still in there from the professional, and the afr's are the same.
Matt
#4
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i sync'd timing and the car is fast again... same as before anyways.
so i was trying to determine my idle issues... either:
a) the tune for IACV is fucked and somehow changed when i went to plug in my tuning computer, or;
b) the IACV is clogged/damaged
when i unplug the IACV right now, there is no noticable difference in idle... both times sounds like i have some lope from cams or something...
i did hear a little backfire into the intake at one point... i cant rember if it was before or after this issue though. happened when cranking so i am going to say after this became an issue.
rafa, i tried uploading a cal and a log once before but it didnt work... i will try it in a second when my tuning computer has booted up.
so i was trying to determine my idle issues... either:
a) the tune for IACV is fucked and somehow changed when i went to plug in my tuning computer, or;
b) the IACV is clogged/damaged
when i unplug the IACV right now, there is no noticable difference in idle... both times sounds like i have some lope from cams or something...
i did hear a little backfire into the intake at one point... i cant rember if it was before or after this issue though. happened when cranking so i am going to say after this became an issue.
rafa, i tried uploading a cal and a log once before but it didnt work... i will try it in a second when my tuning computer has booted up.
#5
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i sync'd timing and the car is fast again... same as before anyways.
so i was trying to determine my idle issues... either:
a) the tune for IACV is fucked and somehow changed when i went to plug in my tuning computer, or;
b) the IACV is clogged/damaged
when i unplug the IACV right now, there is no noticable difference in idle... both times sounds like i have some lope from cams or something...
i did hear a little backfire into the intake at one point... i cant rember if it was before or after this issue though. happened when cranking so i am going to say after this became an issue.
rafa, i tried uploading a cal and a log once before but it didnt work... i will try it in a second when my tuning computer has booted up.
so i was trying to determine my idle issues... either:
a) the tune for IACV is fucked and somehow changed when i went to plug in my tuning computer, or;
b) the IACV is clogged/damaged
when i unplug the IACV right now, there is no noticable difference in idle... both times sounds like i have some lope from cams or something...
i did hear a little backfire into the intake at one point... i cant rember if it was before or after this issue though. happened when cranking so i am going to say after this became an issue.
rafa, i tried uploading a cal and a log once before but it didnt work... i will try it in a second when my tuning computer has booted up.
Idle is a bitch!
Send me a pm and I'll send you my email address. Maybe I can help you out. I'd like to see your idle settings. Start by checking the valve's frequency settings.
#6
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here is my tune and my log...(let me know if it worked)
before i sync'd timing....
timing was retarded ~6 degrees (i read that coarse timing adjustment is 4 degrees and fine is 1 degree)
so definately check timing when you change the CAS oring ahah...
you can see that the car was struggling in the log, the turbo would bareeeely spool.
i will get a comparison log soon.
idle issues still remain the same.
before i sync'd timing....
timing was retarded ~6 degrees (i read that coarse timing adjustment is 4 degrees and fine is 1 degree)
so definately check timing when you change the CAS oring ahah...
you can see that the car was struggling in the log, the turbo would bareeeely spool.
i will get a comparison log soon.
idle issues still remain the same.
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