missing and low end power loss

ls1beater4eva

New Member

May 13, 2005

334

0

0

mooresville

Mar 3, 2007

#1

• Mar 3, 2007

• #1

st put some 30 #injectors and a professional mass air systems maf on my car its the 75 mm bullit meter and now at low rpms it wants to miss really bad and it has a pretty good power loss and only runs ok at wot while i am at cruising speed s it will sputter and carry on like its has a dead plug or somthing but as soon as i go full throttle it clears up what could this be b.c the car doesnt really idle that well now either my fp is at 42 wot and like 38 with the vac line connected ,the car has afr 185 heads with the tfs 1 cam and holleysystemax intake and all bolt ons u can have allso has a msd 6al box and this problem only started when i chenged injectors and maf any help is greatly appreciated

 

SPEEDYLIFSAVR

Founding Member

Sep 18, 2000

666

0

16

FL,89 LX 5.0

Mar 4, 2007

#2

• Mar 4, 2007

• #2

I would lean toward your MAF . I had the exact same problem when upgrading my injectors and MAF . My problem was my meter getting improper readings from my CAI . What kind of intake are you running? I had a mac with the conical filter in the engine bay . I ended up going with a fenderwell style and problem fixed .it was all about how the air was hitting the meter and sample tube . you also may need to "clock" your MAF meter .

 

ls1beater4eva

New Member

May 13, 2005

334

0

0

mooresville

Mar 4, 2007

#3

• Mar 4, 2007

• #3

ok thanks b.c my cai is just the chrome tube with a filter in the egine bay still.now should i remove that bracket that holds the maf to the strut tower? and what way should i clock it ?

 

SPEEDYLIFSAVR

Founding Member

Sep 18, 2000

666

0

16

FL,89 LX 5.0

Mar 4, 2007

#4

• Mar 4, 2007

• #4

if you still have your stock airbox , try putting it back on , to see if your symptoms improve and maybe just keep it in place until you can get a fenderwell CAI .

loosen the MAF meter and try turning it in small increments just like you were putting in in different "clock" positions , for example try 2 , 3 , 5 , even six o'clock which would be 180* .

Good luck!

 

ls1beater4eva

New Member

May 13, 2005

334

0

0

mooresville

Mar 4, 2007

#5

• Mar 4, 2007

• #5

ok thanks im going to try and clock the meter first b.c i dont have a stock air box any more just the chrome intake tube so im going to try and do this wirh out haveing to buy a new cai that goes into the fender thanks for the info .:SNSign:

 

S

superhuaman

New Member

Nov 8, 2004

907

0

0

Harrisburg, PA

Mar 4, 2007

#6

• Mar 4, 2007

• #6

dont have your filter in the engine bay. the rad fan will create turbulence.

 

ls1beater4eva

New Member

May 13, 2005

334

0

0

mooresville

Mar 4, 2007

#7

• Mar 4, 2007

• #7

yes i have my air filter in my engine bay but i have a electric fan so i dont know what else it would be. and i allready tryed clocking the meter and it really didnt seem to help any

 

dragnazz5.0

My "0" key d0esn't w0rk, s0 I have t0 use the zer0

Nov 19, 2005

815

5

18

mooresville, nc

Mar 4, 2007

#8

• Mar 4, 2007

• #8

did you disconnect the battery after you did all this? also, make sure all the vacuum lines are hooked up under the intake and make sure there are no vacuum leaks at the upper to lower intake.