Need help with a 2G

[talonted_one]

Originally posted by L2RTSiAWD
I think nine5's issue is that he has no pump and stock injectors and no AFC so anything he tries the ECU just says "screw you I'm going re-adjust what you just did"

this could be quite true...

but he does have a rewired pump it should give him a lil more room for error

 

[L2RTSiAWD]

Originally posted by talonted_one
i really dont want to go to big injectors so soon with out a bigger turbo.

if i get 550s now i would have to turn around and get 720s when i get the other turbo

wait a tic...

i still havent installed that propane yet. im sure that could help. what do you think?

The propane will richen you up. when you add propane you have to lean out the AFC more.

 

[L2RTSiAWD]

Originally posted by talonted_one


this could be quite true...

but he does have a rewired pump it should give him a lil more room for error

True.

 

[L2RTSiAWD]

Originally posted by talonted_one

if i get 550s now i would have to turn around and get 720s when i get the other turbo

What turbo are you going to get.

660's should be fine unless you are getting a 60-1.

 

[talonted_one]

grrr i forgot about that... i actually thought about that a while ago.

knock sensors are a source of blame...

if our old assed KS are picking up alot of noise it might retard the timing more than it needs to be

 

[L2RTSiAWD]

I still have my propane kit in the garage for after I get my new FMIC and pass emissions.

 

[nine5raptor]

ok, if you look at the stevetek site, he runs 660's off of a STOCK pump (doesn't even say rewired) with no probs. bottom of this page: http://www.stevetek.com/R-FuelSys.html

I don't think I am running out of fuel, because my timing looks even worse if not the same at 7psi vs 18 psi and all in between.

with mine leaned out, I creep far less (16-18 vs 15-fuel cut[~19.5])

 

[nine5raptor]

any thoughts on this larryd?

 

[larryd]

my first though is put your lower honeycomb back in and adjust the screw back to where it was before.. IMHO you should never screw with the 2g MAS. Its not a good idea. Its a cheap/dangerous way of adjusting the fuel trim.

After reading through the thread the only other thing I can think of is maybe your base timing is off? Have you checked your base timing and made sure your cams/crank are aligned at TDC?

 

[nine5raptor]

I will check them here in the next couple of days. The car is extremely sluggish with the honeycombs in and mas screw in (I also did the baro wire mod). The timing has never been good and still isn't regardless of what I do. I have only seen timing in the 20's with 02 voltage<.88

 

[larryd]

what are you using for fuel control again?

 

[nine5raptor]

bottom honeycomb out, mas screw backed out, 10K pot in barometric pressure wire (to lean it out more). For fuel mods, I have rewired stock pump and stevetek upgrade. air is via 14b

timing is the same whether I run 7 psi, 10, 15,18. timing is actually getting better with the leaner mix, but I am afraid to go to much farther.

 

[Silent2g]

check the timing
should be somwhere around 5-7 in that area.
its safe to say why you're loosing timing is due to knock.

the ecu hates you. thats a given.

plus the radical weather change is playing hell with the cars right now. mine included. im running 17 psi and pulling like a mad #####. but as soon as it drops under 30. im screwed, back to 12.

id just ride it out for a while till you get an afc/pump, then tune for warmer weather. winter is too screwy for tuning

 

[larryd]

so you dont have anything like an AFC.. this is IMHO.. stop doing things the ghetto way and get the right tools for the job. Splurge and get yourself a S-AFC

 

[nine5raptor]

I'm a cheapass, the pocketlogger was the splurge.


Bryan: think you might have some time to check out some of my logs sometime?

 

[larryd]

if you can upload the logs we can all diagnos them.

 

[nine5raptor]

ok, I tried what you said. Just opening the files with MS Excel gave me a bunch of ansi characters with no recognizable pattern

edit// looking back at it, the files are saved as pdb files. how do I save/convert them to csv?

 

[nine5raptor]

Originally posted by Silent2g
check the timing
should be somwhere around 5-7 in that area.
its safe to say why you're loosing timing is due to knock.

when idling my timing is around there according to the pocketlogger.

I'm going to try some 96-98octane today to see what it does.

edit:// I have 98 octane in the tank now. The logs look identical to the ones with 92 in the tank, so that pretty much rules out knocking, doesn't it??
-actually the logs look slightly worse (timing is lower, but I am attributing that to the colder air today).

 

[L2RTSiAWD]

Originally posted by larryd
so you dont have anything like an AFC.. this is IMHO.. stop doing things the ghetto way and get the right tools for the job. Splurge and get yourself a S-AFC

That's what I said about 5 posts back.

Stevetek may have ran 660's on the stock pump but since you only have 450's your still limting yourself in the range of fuel you have to play with.

 

[nine5raptor]

Originally posted by Silent2g


id just ride it out for a while till you get an afc/pump, then tune for warmer weather.

that comment was in response to this one about getting a pump.

I can't even get good timing advance on LOWER than stock boost. The 450's should not be maxed if I am running 7psi. That is where all of this started, trying to get good timing at ANY boost level and working my way from there.

 

[Silent2g]

chris, you got my number, gimme a call i can come out and take a look at em for ya

im not gonna say what my timing looks like you'll rack me

 

[talonted_one]

well i think i have a bad fuel pressure regulator...my new guage tells me I am getting something waaaaaaaaaaayy over 100psi fp.

why me

 

[L2RTSiAWD]

Originally posted by talonted_one
well i think i have a bad fuel pressure regulator...my new guage tells me I am getting something waaaaaaaaaaayy over 100psi fp.

why me

Ya that sounds pretty fooked.

 

[talonted_one]

tell me about it....
that damned regulator is an SX which supposedly doesnt go bad.

they do have rebuild kits but I dunno what im gonna do yet.

 

[nine5raptor]

Originally posted by Silent2g
chris, you got my number, gimme a call i can come out and take a look at em for ya

im not gonna say what my timing looks like you'll rack me

yeah, yeah...I've heard what your timing is with your WI and all. I'm jealous, what can I say?