Fordmods Logo

BLOWNC is running! Need help with idle 

 

Page 1 of 2 [ 30 posts ] Go to page 1, 2  Next

 
 Post subject: BLOWNC is running! Need help with idle
Posted: Mon Dec 10, 2007 9:17 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

Ok...i have 42lb injectors with the 42lb maf, base ignition is set to 24deg... still running stock ecu as funds simply dont allow me to go aftermarket atm. Car is harder than normal to start, and refuses to idle, and wont rev cleanly...What or where do i start as i simply dont have much knowledge when it comes to ignition etc... someone said to raise the idle but i cant see how that would help it rev? Car was fine and would rev cleanly and idle before injectors and maf went in?
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 12:20 am 
Getting Side Ways
Offline
User avatar

Age: 70

Posts: 3555

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Hmmm ???
Sure maf is calibrated for these injectors ???
What type maf ??

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 12:58 pm 
Oompa Loompa
Offline

Age: 39

Posts: 31

Joined: 9th Nov 2006

Location: Liverpool
NSW, Australia

Mate car aint going to run properly with that set up with out a tune , thats why its hard to start
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 7:14 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

yes maf is a pro - m maf with 42 on the side, i have the papers that came with it...i would have assumed it would have at least been able to idle but i t cant, it keeps 'hunting' before finally stalling
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 7:38 pm 
Stock as a Rock
Offline

Posts: 149

Joined: 28th Sep 2007

Power: 192 rwkw

Location: kadina
SA, Australia

hmmmm, there are just too many variables here for an off the shelf recalibrated maf.

obviously ur tune is a mile out,
hunting at idle usualy indicates a lean condition and this would definately stop the engine from revving cleanly, do u hav an adjustable fuel pressure reg? try turning the fuel pressure up and see if that improves the situation any

do u hav an afr guage? u should, i wouldnt build a forced induction settup without one,
invalueable tuning tool and will quickly tell u wats going on mixture wise
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 8:39 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

hmm... not running a adj fuel reg yet, but i may have incorrectly assumed that if i nursed it i coulda waited...and still no a/f guage...are they really a worthwhle addition? Ive been told by some ppl not to waste my money on them?
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 8:59 pm 
Getting Side Ways
Offline
User avatar

Age: 39

Posts: 2057

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

An AFR gauge is almost a must.

If it leans out with boost well it can be all over, especially with the noise of the 8 you might not hear the detonation.

A malpassi would be the easiest solution?

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 9:07 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

ok so a malpassi is next...how do i go about installing it? On the stock 5.0 fuel rail?
Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 10:46 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 975

Joined: 26th Nov 2004

Ride: el falcon

Power: 608 rwkw

Location: Waroona
WA, Australia

don't use a malpassi fuel reg. they are crap.

turbo smart regs seem to be a high quality unit.

the easiest way to install is to run it inline after the stock reg.

 

_________________

# 1997 EL Falcon GLI - 600+rwkw

# 2008 FPV FG GTE - Xa Coilovers, 20x8/ 20x10 Fairladys

Top
 Profile  
 
 
Posted: Tue Dec 11, 2007 11:57 pm 
Getting Side Ways
Offline

Age: 39

Posts: 868

Joined: 23rd Sep 2005

Ride: eb falcon

Location: kadina
SA, Australia

BlownNc wrote:
and still no a/f guage...are they really a worthwhle addition? Ive been told by some ppl not to waste my money on them?

dont get confused here, there is a difference between a simple a/f gauge, and a lambda/wideband a/f gauge... one IS a piece of crap (unless connected to a linear output from a wideband), the other is what will be used when your car is run on the dyno, and also they are readily available as an in-car system...

have you checked for manifold vacumn leaks? have you tried just connecting the maf infront of the throttle body with a plain tube, ie, bypass any turbo system?? what else has been disconnected?? maybe try disconnecting and reconnecting the battery... check all the plug leads are connected??

also, since the plugs are probably fouled up now, take them out and replace them, or try cleaning them with an oxy

 

_________________

EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI

Top
 Profile  
 
 
Posted: Wed Dec 12, 2007 5:09 pm 
Stock as a Rock
Offline

Posts: 149

Joined: 28th Sep 2007

Power: 192 rwkw

Location: kadina
SA, Australia

yeah u need a wideband afr setup fo sure
and id buy any brand of reg apart from malpassi
there s**t
Top
 Profile  
 
 
Posted: Wed Dec 12, 2007 10:37 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

ok...so im gunna grab a new fuel reg... what should i get? are there different types available?
Top
 Profile  
 
 
Posted: Thu Dec 13, 2007 9:20 am 
Getting Side Ways
Offline

Age: 39

Posts: 868

Joined: 23rd Sep 2005

Ride: eb falcon

Location: kadina
SA, Australia

yes, there are rising rate regs (bad news) and 1:1 regs (good news)...

dont get an ebay OBX reg..

although, in your application, you are probably in need of a rising reg since you dont have any ecu tuning ability, but, im not 100% sure whether since you have the 42lb maf whether you can use a 1:1 reg... i think you probably can

if you want a 1:1 reg, i do recommend turbosmart

 

_________________

EB 4L, 8.4:1, R154, GT4202r, 4in exhaust, Greenslade Engineering exhaust manifold, plenum chamber, 90mm throttle, Garrett W2A cooler, Surecam custom, autronic SM4, Bosch 120lb, Crane HI-6, LX-92, LM-1, Turbosmart Reg, 2x bosch 044, turbosmart 48 gate. 470kw+ @ 18PSI

Top
 Profile  
 
 
Posted: Thu Dec 13, 2007 11:10 pm 
Getting Side Ways
Offline
User avatar

Age: 70

Posts: 3555

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Sard is another brand fuel reg.. About $200.00

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Thu Dec 13, 2007 11:37 pm 
Getting Side Ways
Offline
User avatar

Age: 41

Posts: 451

Joined: 5th Nov 2004

Ride: 5lt Turbo NC, TE V6 Gemini

Location: Castlemaine
VIC, Australia

Thanks everyone for your help, ill go away and try a few things and post my results back up
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 30 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 11 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Tue Apr 16, 2024 8:48 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names