This truly solved my "hunting for idle" problem.
11-15-2005, 08:20 PM
#61
Le Mans Master
First off.
A lot of people have had sucess with Alvin's tunes. It doesn't mean he can't make a mistake. Should he be blamed when kopbet has no idea for sure if it is the chip. No, but it is a possibility. He is human you know. Kopbet, don't blame him. Try to rule out other stuff first.
Also, if it is due to the fact that you are running rich, go to a dyno and have them run a AFR probe in your exhaust. (Preferrably not at the tailpipe) Or better yet, use a scanner to determine what your O2 sensor is saying.
I think it may be time to call in the big boys.
There are so many variables and there is so much I, and I am sure others, are missing because of this being online.
If you are so dead set on it being the chip.
Swap to your stock chip first.
Just to see what happens, it only takes a minutes where as injectors will take a while.
Then go ahead and swap injectors and see if it goes away.
This will eliminate the chip and possibly the injectors as the problem if it doesn't.
You need to try to eliminate the problems one by one systematically. Do that. And post the results after each step.
Have you changed plugs recently.
This is a wild geuss but did you put performance ones in?
It almost sounds like you put in plugs that are too cold.
A lot of people have had sucess with Alvin's tunes. It doesn't mean he can't make a mistake. Should he be blamed when kopbet has no idea for sure if it is the chip. No, but it is a possibility. He is human you know. Kopbet, don't blame him. Try to rule out other stuff first.
Also, if it is due to the fact that you are running rich, go to a dyno and have them run a AFR probe in your exhaust. (Preferrably not at the tailpipe) Or better yet, use a scanner to determine what your O2 sensor is saying.
I think it may be time to call in the big boys.
There are so many variables and there is so much I, and I am sure others, are missing because of this being online.
If you are so dead set on it being the chip.
Swap to your stock chip first.
Just to see what happens, it only takes a minutes where as injectors will take a while.
Then go ahead and swap injectors and see if it goes away.
This will eliminate the chip and possibly the injectors as the problem if it doesn't.
You need to try to eliminate the problems one by one systematically. Do that. And post the results after each step.
Have you changed plugs recently.
This is a wild geuss but did you put performance ones in?
It almost sounds like you put in plugs that are too cold.
11-15-2005, 08:21 PM
#62
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by q2blaster@work
My opinion is this, he has already frustrated himself to the point he's not thinking rational, If I knew the answer I would try and help him, what ever it took. I think he should bite the bullet and take it to somebody who knows and just get it repaired. As far as my opinion being kept to myself, every time I see you insulting somebody from now on you can bet I will put in my two cents! If you have the knowledge your supposed to, why dont you explain away. Otherwise try and be a little compassionate to people.
p.s.
have a nice day!
p.s.
have a nice day!
Thank you for understanding. People here sometimes don't get it and love to bash the ideas of another because the purpose I have for my plans, even my future engine building suggestions do not match the general opinion. e.g. hating Caboboy's 421 cubic inch setup with a mild 219/219 cam and AFR 190 heads. Might make only 360 some RWHP @ 4500 rpms but the RWTQ is over 500 ft-lbs. That's enough to put a hurtin' on most of the strip cars here.
11-15-2005, 08:32 PM
#63
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Hot Rod 90
to the original poster, i'm re-posting this advice, its your best bet:
and don't you dare even insinuate that pcmforless has anything to do with your current problems. i too, hope that alvin reads this thread. he would crap his pants.
and don't you dare even insinuate that pcmforless has anything to do with your current problems. i too, hope that alvin reads this thread. he would crap his pants.
Just because I came here and traded up for an American sports car doesn't mean I'm that ****ing stupid. 
11-15-2005, 08:36 PM
#64
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by USAsOnlyWay
First off.
A lot of people have had sucess with Alvin's tunes. It doesn't mean he can't make a mistake. Should he be blamed when kopbet has no idea for sure if it is the chip. No, but it is a possibility. He is human you know. Kopbet, don't blame him. Try to rule out other stuff first.
Also, if it is due to the fact that you are running rich, go to a dyno and have them run a AFR probe in your exhaust. (Preferrably not at the tailpipe) Or better yet, use a scanner to determine what your O2 sensor is saying.
I think it may be time to call in the big boys.
There are so many variables and there is so much I, and I am sure others, are missing because of this being online.
If you are so dead set on it being the chip.
Swap to your stock chip first.
Just to see what happens, it only takes a minutes where as injectors will take a while.
Then go ahead and swap injectors and see if it goes away.
This will eliminate the chip and possibly the injectors as the problem if it doesn't.
You need to try to eliminate the problems one by one systematically. Do that. And post the results after each step.
Have you changed plugs recently.
This is a wild geuss but did you put performance ones in?
It almost sounds like you put in plugs that are too cold.
A lot of people have had sucess with Alvin's tunes. It doesn't mean he can't make a mistake. Should he be blamed when kopbet has no idea for sure if it is the chip. No, but it is a possibility. He is human you know. Kopbet, don't blame him. Try to rule out other stuff first.
Also, if it is due to the fact that you are running rich, go to a dyno and have them run a AFR probe in your exhaust. (Preferrably not at the tailpipe) Or better yet, use a scanner to determine what your O2 sensor is saying.
I think it may be time to call in the big boys.
There are so many variables and there is so much I, and I am sure others, are missing because of this being online.
If you are so dead set on it being the chip.
Swap to your stock chip first.
Just to see what happens, it only takes a minutes where as injectors will take a while.
Then go ahead and swap injectors and see if it goes away.
This will eliminate the chip and possibly the injectors as the problem if it doesn't.
You need to try to eliminate the problems one by one systematically. Do that. And post the results after each step.
Have you changed plugs recently.
This is a wild geuss but did you put performance ones in?
It almost sounds like you put in plugs that are too cold.
11-15-2005, 08:47 PM
#66
Team Owner
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes
on
2,602 Posts
St. Jude Donor '05
Unless an injector is bad, the Boschs shouldn't be an issue. 24#ers here, stock L98 no problems.
11-15-2005, 08:49 PM
#67
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by USAsOnlyWay
Well crap man. Have you pulled your plugs?
Are they all wet and sooty?
Are they all wet and sooty?
11-15-2005, 09:03 PM
#69
Race Director
Member Since: Sep 2000
Location: The Top of Utah
Posts: 17,298
Likes: 0
Received 23 Likes
on
22 Posts
Originally Posted by kopbet89c4
It is also possible that my blue top Bosch injectors are flowing a lot more than 24 lbs/hr. That can explain my rich condition and the 120+ IAC counts.
and getting nowhere.RACE ON!!!
11-15-2005, 09:18 PM
#70
Le Mans Master
Actually, I am trying to get him to systematically check off that the chip/injectors aren't the problem. At least thats why I am telling him to go pull the plugs.
11-15-2005, 09:25 PM
#71
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by USAsOnlyWay
Dude, if you are running rich you will see it on the plugs.
Black is rich
Brown is fine.
Go pull em now.
This will resolve the chip/injector issue.
Black is rich
Brown is fine.
Go pull em now.
This will resolve the chip/injector issue.
Here's a little bit of history about my Corvette ownership:
About 2-3 weeks after I owned the car, the dyno on the stock intake, base and plenum was 212 rwhp @ 4100 rpms and 314 rwtq @ 2600 rpms. That was with a 12:1 A/F ratio. 3 more passes on the dyno led me to believe that my power wasn't going to improve with the high coolant temp.
Last recent dyno result with SuperRam, 24 lb injectors + Alvin's tune was 226 rwhp @ 4800 rpms and 325 rwtq @ 3500 rpms. Couple more runs made me think that I couldn't top that because it was 1-2 hp less than the first time. There was no A/F result then because the WB wasn't working well at the time.
Last edited by kopbet89c4; 11-15-2005 at 09:27 PM.
11-15-2005, 09:36 PM
#72
Melting Slicks
can someone tell me why this testosterone raising thread has not been locked? If some folks want to yank vacuum lines, or drill holes in their TB plates, or rig up a vacuum line through the firewall so they can blow air into their intake to fix their idle problems, more power to them....
BUT, posts such as this simply have no place on CF, as some more junior C4 owners may take this as a real "fix" for their idle problems, when in fact, it is only a bandaid, masking the true fault in your induction system.
(man this reminds me of pionexx)
BUT, posts such as this simply have no place on CF, as some more junior C4 owners may take this as a real "fix" for their idle problems, when in fact, it is only a bandaid, masking the true fault in your induction system.
(man this reminds me of pionexx)
11-15-2005, 09:58 PM
#73
Team Owner
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes
on
2,602 Posts
St. Jude Donor '05
still had this idle problem since Day 1 of owning my Vette. Its getting rediculous...
With CFI, it has to be something that was not removed prior to your mods. A shot in the dark, but have you either sprayed or used the propane method for vacuum leaks?
Amazing you ran a 12.9 like that
With CFI, it has to be something that was not removed prior to your mods. A shot in the dark, but have you either sprayed or used the propane method for vacuum leaks? Amazing you ran a 12.9 like that
11-15-2005, 11:01 PM
#74
Team Owner
Member Since: Sep 2002
Location: OBAMA IS HITLER
Posts: 22,209
Likes: 0
Received 11 Likes
on
10 Posts
kopbet, take a deep breath.........and hold it. j/k
seriously though, your overreaction precedes you. you're being "stupid" because you refuse to listen.
as a side note, others who defend just don't know your other history of childish "ricer this and ricer that" bs that you always have spewed; that's certainly an indication of emotional (not intellectual) stupidity, at any rate.
seriously though, your overreaction precedes you. you're being "stupid" because you refuse to listen.
as a side note, others who defend just don't know your other history of childish "ricer this and ricer that" bs that you always have spewed; that's certainly an indication of emotional (not intellectual) stupidity, at any rate.
11-15-2005, 11:48 PM
#75
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by cuisinartvette
still had this idle problem since Day 1 of owning my Vette. Its getting rediculous...
With CFI, it has to be something that was not removed prior to your mods. A shot in the dark, but have you either sprayed or used the propane method for vacuum leaks?
Amazing you ran a 12.9 like that
With CFI, it has to be something that was not removed prior to your mods. A shot in the dark, but have you either sprayed or used the propane method for vacuum leaks? Amazing you ran a 12.9 like that
11-16-2005, 12:08 AM
#77
Safety Car
Thread Starter
Member Since: Dec 2004
Location: Poop land
Posts: 4,088
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by MikeC4
Good job!! BTW, thanks for the sarcasm. It made me uhhh... let me think, I have brain freeze at the moment...
Must be the cold beer.
11-16-2005, 12:10 AM
#78
Le Mans Master
Originally Posted by MikeC4
... or rig up a vacuum line through the firewall so they can blow air into their intake to fix their idle problems, more power to them....
Originally Posted by Hot Rod 90
as a side note, others who defend just don't know your other history...
no big deal. (Note: I have been here for all that too) As for why I am helping, its because I am attempting to make this forum what it was a few years ago. I don't know much, but I will drop the BS and try to at least help with the problem no matter how many idiotic posts the poster may make. This forum really is becoming useless. First C4 Gen, now its invading C4 Tech. This place used to be straight Tech help all the time. I remember asking a question back when I knew absolutely nothing and I would get 5-6 replies about possible solutions. Also you could just read down the board and learn tons of info. Now half the threads are "do a search" or its mock this, ohh you are stupid that, yadda yadda
Its really quite sad.
ANYWAY, kopbet, the plugs from last time were black. That alone means you should pull the plugs and look at them. I honestly think you should take it to a shop as I feel I am only getting a partial story from you and the problem may just be that you don't know how to set the idle/iac properly. Or it may be much more. Until you can start eliminating problems systematically I can't help you here.
