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Knock Sensor and PWSC...EGT.....revs......

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HaveBlue83

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Discussion starter · #1 ·
OK. From what i know, PW turns off the knock sensor. I had my car dyno-tuned and the knock sensor was left ON for safety. The issue is the thing was going crazy with the Blower's WHINE. [smackbum]

now....it is possible to De-Sensitize the knock sensor like 50%? My father has had this done for his PROcharged Mach1 Mustang. Can the focuses sensor be adjusted like that? If it cannot and i turn it off, is it gonna be safe enough for every day use? I have an Xcal3 BTW.

I WILL NOT buy a J&S. I would love to, but i heard that the electronics are sup-par, and i have read of instances where it CAUSED engines to fail/detected wrong knock levels.

Also, the EGT is high. like 1500 DEG at 110mph. I shut down at that. Not risking it. Would de-sensitizing/turning off the knock sensor help any with that issue? I should NOT be that high. I made 243WHP, 190WTQ at McNews. I have a safe AFR of 11.5 when on it. It's pulling low teens for timing. It is possible to get on the dyno and do 100mph and then adjust parameters to get that egt lower at higher speeds???? What about an ORP instead of a HFC? is my exhaust keeping the EGT higher???

I want 250WHP, 220WTQ. Like advertized. the guys at Mcnews said it had more in it, but the knock sensor was going crazy.

I also developed a hanging rev. 2,500 when i puch in the clutch and coast to a stop, then it drops down to normal. It started a few days after the initial tune. Is this Dash pot? or is it something else. I have heard about idle issues with the PWSC.

dyno graph is smooth and linear. It makes good power, i just want to know more before I get it retuned on the dyno. Also, My fornt 02 sensor went out after about a week of boost. on and off CEL.

I know others have questions like this. PWSC seems to have a black hole of knowledge online........it's really wierd.

that's all.......[cheers]
 
#4 ·
HaveBlue83 said:
I WILL NOT buy a J&S. I would love to, but i heard that the electronics are sup-par, and i have read of instances where it CAUSED engines to fail/detected wrong knock levels.
Click to expand...
I have only heard of this one time and it was on John's car and I think he had an older model from what is out right now. I'm running the J&S on my car and it has saved my ass more than once. I learned how to tune on this car and accidentally wrote a tune with stock spark values and went out to test WOT runs...the J&S caught it and lit up letting me know and pulling the timing out to keep the engine together. It has been a real help to me in tuning and haven't had any problems with spark values getting pulled at random. What other cars have you heard of this problem on? (just curious)

As for your high EGTs if your stock knock sensor is picking up knock from the charger it will pull timing and cause those high of EGTs. (captain obvious) If the knock sensor is indeed the cause the only solution would be J&S or turn it off in the tune. I'm not sure if it can be turned down in sensitivity or not, I'm sure Tom or one of the other more experienced tuners will chime in with that answer.

Hanging revs could be something with the speed to go into idle on the tune. I had a similar problem with mine and Tom suggested changing that. Worked the first time but now it's back, I think I may have developed a vac leak.
 
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Discussion starter · #5 ·
yeah.....i an def getting the connection between EGT and the knock sensor......


I just don't know about the J&S......john's and one other i think.......I just don't know....


I would LOVE to just turn it down.......and if I turn it off and SHTF, it's POP....

like I said, it's hard to get a lot of info on the PWSC online/period, so I take what I can find.
 
#7 ·
I'm a novice but have learded a bit trying to trouble shoot my PW kit, mostly all small install stuff. I'm not making full boost at the moment but haven't gotten around to checking my bypass valve yet...

Anyhow I believe the idle condition with these cars stems from the design of the brake booster line on the vac neck. I had the same idle issues that most folks have and low and behold one day, with the car running, I lightly pulled on the brake line on the vac tree and heard the sucking sound of a vac leak. I believe it seats fairly well but not well enough causing this idle condition. I fixed the vac leak by simply cutting off the plastic junk of a connector and used a hose clamp to securely affix the remaining hose to the vac tree, there was plenty of extra hose. My car idles, for the first time, PERFECT...like factory. I was trouble shooting a couple issues when I found this but truely believe this was the root of my problem. I'm anxious for someone else to check this on theirs as I believe this could be the trouble with all the idle issues with this kit. When you look at the brake booster line connector you'll see what I mean.

Someone please try this and let me know what you think...

BTW when I had mine on a dyno, no tune, the guy had a lot of difficulty due to what he said was some interferience from my car shutting down his computer. It was at a SVT club event and he did not have trouble with any other car, none were foci but there were 14 others. He only got one full reading but my numbers were nearly identical to yours.
 
#8 ·
Are you doing your own tuning with the PRP and xcal3? Or did you just have it tuned at McNews?
 
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Discussion starter · #9 ·
tuned at mcnews. I WISH i could do PRP and be that smart....lol.......


I just try to learn what i can.

dash pots need adjusting, and the Knock needs messed with....after that, it's good....
 
#10 ·
Its funny that after all this time and with PW having the true FORD tuning software they still cant get it right , Hmmmm seems some one told them that years ago and every one thought he was just bashing the Co when he mentioned the issues thay would have tuning the SVT , Be glad you not one of the MANY blown SVT engines they had

Tom
 
Discussion starter · #11 ·
you mean one of the 3 that they fudged and then stood up and replaced for the customers?

now i know i am but a "little" person in this BIG focus world, but I know you have to have some kind of professional insight that could help us PWSC "victims" as you have pretty much indicated we are. I think we aren't but I'm a little person, so I don't count.

Wouldn't you like to be the tuner that helped everyone with your posts, instead of just bashing every non turbo focus out there?

like, "well, if you look at your spark tables and see that your #1 cyl is getting too much....blah blah......." or stuff like that. then we can ALL benefit from it.

besides, you won't touch my car because I don't have a J&S....and i was told by an electrical tech that they have Radio Shack quality components in them. I just can't trust that system in my car right now.......

so, if you have any info on de-sensitizing the knock sensor, or the hanging rev with the dash pot, I would LOVE to hear it Tom.

Thanks again man.
 
#12 ·
you mean one of the 3 that they fudged and then stood up and replaced for the customers?
[:)][:)][:)][:)][:)][:)]Yes 3 right , you will find much more then that if you go looking , one guy lost 2 engines

now i know i am but a "little" person in this BIG focus world, but I know you have to have some kind of professional insight that could help us PWSC "victims" as you have pretty much indicated we are. I think we aren't but I'm a little person, so I don't count.
[:)][:)][:)][:)][:)][:)]Everyone counts but you need to turn your frustration to PW not to me , they were warned what would happen and it did and they have yet to fix the issue and everyone instead of making them fix the issues turned to out side tuners to fix it out of pocket

Wouldn't you like to be the tuner that helped everyone with your posts, instead of just bashing every non turbo focus out there?
[:)][:)][:)][:)][:)][:)]This isnt bashing this is fact , Bashing is what you doing to J&S with out knowing what your talking about , Im stating fact from years of the PW on my dyno as well as seeing there tune first hand and opened and knowing of MANY blown SVT engines

like, "well, if you look at your spark tables and see that your #1 cyl is getting too much....blah blah......." or stuff like that. then we can ALL benefit from it.
[:)][:)][:)][:)][:)][:)]I could go through and point out the problems in the tune in detail but that wouldnt mean a thing to you

besides, you won't touch my car because I don't have a J&S....and i was told by an electrical tech that they have Radio Shack quality components in them. I just can't trust that system in my car right now.......
[:)][:)][:)][:)][:)][:)]Then your "electrical tech" Is an idiot and you should go to some one that knows what there talking about and has used the devise , I have installed about 50 of them and all but Johns is working flawless and some for many years

so, if you have any info on de-sensitizing the knock sensor, or the hanging rev with the dash pot, I would LOVE to hear it Tom.
[:)][:)][:)][:)][:)][:)]Th only way to fix the problem is turn off the KS and install a J&S this way you can see knock is being pulled and respond , as for the idle thats an easy fix but understand you cant just change one thing in the tune you need to do a complete tune over

Tom
 
Discussion starter · #13 ·
Ok.

Well, whatever info you can provide for me that isn't secret, please do, as I will be taking to a tuner that does GT500 Shelby's and other cars. He helped cracked the drive-by-wire system on the Shelbys that was all new and stuff, so we will see what he can do with the car.

I KNOW you know every inch of the focus....i know......I understand you took time out of your LIFE to do this....thank you.

I just want my car to run like a perfect machine......lol.....so I will see how close i can get to that.
 
#14 ·
I wish you the best with that , The wost thing you can do from years of experance is take your Focus to a "world class" Mustang tuner cause you dont have a mustang

2 calls today alone from people taking there cars to the "best" mustang tuner anywhere and now after me telling them the same thing im telling you there calling for info because there car runs like crap and didnt make the power they expected

This isnt a Mustang and it cant be tuned like one , lucky thing is unloke about 75% ot the others that call they still have a running engine

I tune Mustangs as well just did a 900HP 3valve and the Focus isnt anything like the Focus when it comes to tuning thats why you have the tune you now have ever thought about that ?

Mcnews isnt far from you and they have knowledge of the Focus and the pw

Tom
 
#15 ·
1turbofocus said:
[:)][:)][:)][:)][:)][:)]I could go through and point out the problems in the tune in detail but that wouldnt mean a thing to you

Tom
Click to expand...
So we are stupid?

[poke]

Sorry, ruffled my feathers a bit. I think it would help some of us to know. And it may encourage more people to re-tune, which would make you tuners more money... enlighten us with a few of the issues plz...
 
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#16 ·
Wow, can't we just stick to the problem on hand and not trash each other. We're all hear to learn something so let's drop this bickering back and forth guys, please.

Bluey, I did read that there are two things wrong with the hanging idle issue. The first possibility is that the stock IAC is thought to be too small and can't close off quick enough. Massive is supposed to have a remedy for this which was priced around $150 from what I could find on it.

Now....some people have tried this larger IAC but have still have had the same problem, which leads to the second option. The other option is to have your car retuned. A retune seemed to cure some owner's idle issues that didn't swap out for a new IAC.

Either way, it sounds like a crapshoot to see which choice is going to help. It may be one, or the other or even both.


Now play nice people!
 
#17 ·
1turbofocus said:
I wish you the best with that , The wost thing you can do from years of experance is take your Focus to a "world class" Mustang tuner cause you dont have a mustang
Click to expand...
This is true, I bought the PRP with no tuning knowledge and heard a lot about the LaSota Racing CD to learn how to use it so I spent the money and got it in the mail. It was a good CD and taught me the basics of the software and what a few different tables did, but they were focusing on mustangs and doing things way different than seem to be done on the Focus.

I had made changes to try and fix idle issues that I was having and it only made the car worse, until I called up Tom and told him what I was having problems with and what I had done. He promptly told me to throw the CD away and start over. He gave me a few pointers on dashpot values and spark, and with that little advice my car ran a hell of a lot better. Don't trust a mustang tuner just because he makes high hp mustangs, make sure he knows what he is doing and has tuned a focus before.

You did say you had it tuned at McNews...why not call them up and go over the issues your having with them and see if they can adjust the tune?
 
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#18 ·
Peregrine said:
Bluey, I did read that there are two things wrong with the hanging idle issue. The first possibility is that the stock IAC is thought to be too small and can't close off quick enough. Massive is supposed to have a remedy for this which was priced around $150 from what I could find on it.

Now....some people have tried this larger IAC but have still have had the same problem, which leads to the second option. The other option is to have your car retuned. A retune seemed to cure some owner's idle issues that didn't swap out for a new IAC.
Click to expand...
That has to be one of the craziest things from massive yet , there is nothing wrong with the factory IAC , If what you are saying about massive and making some part to fix the IAC then it is more to there inability to tune then needing another part , The focus IAC works great if you know what your doing in the tuning and how to make the changes to get it to respond correctly , I can cure ALL idle issues with the tune if it cant be cured with the tune then you either have a bad IAV or Vac leak and either way can be cured for much less then 150.00 , Snake oil !

Tom
 
Discussion starter · #20 · (Edited)
OK TOM........I guess it all boils down to THIS:





how much am I gonna have to pay you to FIX ALL of my issues? $150?




According to you, no one else can fix it. I'm TRYING to be nice here.......REALLY...........

you know the problems, and won't tell anyone, but by the time i get back, you will be retired, FOREVER taking this info to the grave. so I guess I am just SOL huh? Why get it retuned at Mcnews if they don't know the answers. No one does then.

this is a forum to HELP. Not talk about how someone knows the answer and won't tell.


might as well lock the thread till Tom comes out with it, cause we aren't getting anywhere with this.

RUTHLESS.........
 
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