greddy idle problems
05-09-2011, 12:28 PM
#51
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so today i changed the map to "stock style" and drove around the block a few times without hitting positive boost, and it idle perfectly. however when i changed the map to my MM tune and drove around a few times, the idle became erratic... any ideas people?
05-31-2011, 08:46 AM
#53
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so the car is still giving me an erratic idle even with the new fuel pump, do you guys think its the injectors being that my Afrs under wot is 12.5?!?
08-16-2011, 10:53 AM
#55
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well heres a major update, i replaced my ssv since it was in bad shape. no luck with the idle..
i replaced my o-rings just the other day and reset everthing. no luck again. now i'm kinda blah about it. my car has over a 123k minus the engine which only has 4k on it. i was thinking about checking my o2 sensor and e-shaft sensor. any thoughts guys?
i replaced my o-rings just the other day and reset everthing. no luck again. now i'm kinda blah about it. my car has over a 123k minus the engine which only has 4k on it. i was thinking about checking my o2 sensor and e-shaft sensor. any thoughts guys?
08-16-2011, 11:53 AM
#56
Are you still running the base calibration or did you ever submit logs to actually have the car tuned? (I don't know who you are from your screen name).
EDIT - Nevermind, I just found your info.
Uh, you never continued your calibration service. You are still running around on v4.0.1.
You might want to get that done before you chase any other red herrings. It takes at least 5 or 6 iterations before the car is even close to "tuned" and it was apparent in your initial logs that you had some issues that might be caused by a leak somewhere post-turbo.
No way I could know for sure with just one set of logs.
You are closing in on the 4-month mark, so you might want to dive in before time runs out.
Also, VTA BOVs are always a bad idea on a MAF car.
EDIT - Nevermind, I just found your info.
Uh, you never continued your calibration service. You are still running around on v4.0.1.
You might want to get that done before you chase any other red herrings. It takes at least 5 or 6 iterations before the car is even close to "tuned" and it was apparent in your initial logs that you had some issues that might be caused by a leak somewhere post-turbo.
No way I could know for sure with just one set of logs.
You are closing in on the 4-month mark, so you might want to dive in before time runs out.
Also, VTA BOVs are always a bad idea on a MAF car.
Last edited by MazdaManiac; 08-16-2011 at 11:59 AM.
08-17-2011, 09:28 AM
#58
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Thread Starter
Are you still running the base calibration or did you ever submit logs to actually have the car tuned? (I don't know who you are from your screen name).
EDIT - Nevermind, I just found your info.
Uh, you never continued your calibration service. You are still running around on v4.0.1.
You might want to get that done before you chase any other red herrings. It takes at least 5 or 6 iterations before the car is even close to "tuned" and it was apparent in your initial logs that you had some issues that might be caused by a leak somewhere post-turbo.
No way I could know for sure with just one set of logs.
You are closing in on the 4-month mark, so you might want to dive in before time runs out.
Also, VTA BOVs are always a bad idea on a MAF car.
EDIT - Nevermind, I just found your info.
Uh, you never continued your calibration service. You are still running around on v4.0.1.
You might want to get that done before you chase any other red herrings. It takes at least 5 or 6 iterations before the car is even close to "tuned" and it was apparent in your initial logs that you had some issues that might be caused by a leak somewhere post-turbo.
No way I could know for sure with just one set of logs.
You are closing in on the 4-month mark, so you might want to dive in before time runs out.
Also, VTA BOVs are always a bad idea on a MAF car.
jeff, i will be continuing the tune with you starting next week, since i'm on vacation!! so hopefully we can find out whats going on! But my main concern is the fact it wont idle in the morning when starting the car up. soon as it warms up past the cold notch, its erractic!!
cattywampus: i thought wit the HKS BOV since its a pull type diaphragm or whatever its called. its able to hold better then most BOVs?
08-17-2011, 11:21 AM
#59
jeff, i will be continuing the tune with you starting next week, since i'm on vacation!! so hopefully we can find out whats going on! But my main concern is the fact it wont idle in the morning when starting the car up. soon as it warms up past the cold notch, its erractic!!
Unfortunately, almost all of the HKS SSQ BOV units I've seen over the last 3 years have been counterfeit.
08-17-2011, 12:18 PM
#62
The fakes rage from very obvious to almost indistinguishable from the real thing.
Some have a different body design with more or less "fins". Some fakes have a tension adjuster (the real thing does not). Some fakes don't even say HKS on them.
Generally, the real thing will not open, no matter how much pressure is on the inlet, if there is no vacuum on the signal port.
I had a fake for several years (purchased directly from and authorized HKS retailer in Maryland who was very surprised - and I can vouch for their voracity - that they were selling fakes).
IIRC, I got my current authentic HKS from BHR and the other HKS SSQ BOV that have come through Ray to me for other customers have been the real deal.
Some have a different body design with more or less "fins". Some fakes have a tension adjuster (the real thing does not). Some fakes don't even say HKS on them.
Generally, the real thing will not open, no matter how much pressure is on the inlet, if there is no vacuum on the signal port.
I had a fake for several years (purchased directly from and authorized HKS retailer in Maryland who was very surprised - and I can vouch for their voracity - that they were selling fakes).
IIRC, I got my current authentic HKS from BHR and the other HKS SSQ BOV that have come through Ray to me for other customers have been the real deal.
Last edited by MazdaManiac; 08-17-2011 at 12:20 PM.
08-17-2011, 12:20 PM
#63
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Apart from the odd backfire I get when I am part throttle and I release the throttle quickly... Are there any harmful effects on the engine from VTA, not just tuning and spool time effects?
Last edited by RotaryMachineRx; 08-17-2011 at 01:34 PM.
08-17-2011, 01:47 PM
#67
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08-17-2011, 02:12 PM
#70
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08-17-2011, 02:19 PM
#72
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I guess the other question is do the knock-offs come in HKS boxes with instructions, hose, filter and the works?
I feel pretty confident that mine is authentic but on the other hand its always nice to check for sure.
I feel pretty confident that mine is authentic but on the other hand its always nice to check for sure.
08-17-2011, 02:23 PM
#73
You will be surprised how many leaks you probably have, but the discharge of the BOV should not be one of them.
Yes, usually.