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View Full Version : 3.5HFM, Injectors, Chip HELP!!!



Sadiq
08-25-2006, 06:05 AM
so i just installed these things today (correct AA chip) into my 95 m3. Before installing the injectors, i pulled the fuel pump fuse and cranked it a few times, like i was supposed to. After installing everything, the car idles extremely rough. i havent driven it yet, but i idled it for about 30 seconds to a minute and gave it gas, and it still idles rough. help?

Sadiq
08-25-2006, 06:22 AM
ok false alarm - it seems you need to run it longer. install was a success!!:buttrock

JohnnyBgood95
08-25-2006, 07:21 AM
so how does it run?

raoke
08-25-2006, 07:32 AM
yeah, tell us what you think please.

Sadiq
08-25-2006, 07:36 AM
idles sooooooooooooooooo smooth... like a buttered up baby. i didnt really go crazy with it, as it was puttering for fuel for a little while, but i'll post back tomorrow and let you guys know about the power.

xjeeper
08-25-2006, 02:36 PM
I dont know about that, it should just fire right up without problems.

JUST to be super double shure...... two things to check, I dont care how dumb this sounds but make SURE that the hfm is facing the right direction.... the arrow must be pointing in the direction of the airflow (i.e. arrow pointing to the rear of the car) and the plug on the HFM should be located @ about 10:00. (general rule of thumb is 10:00 but what you are actually trying to achieve is having the plug on the outside of the radius of the bend in the intake pipe to make sure it is able to read all the airflow...... the majority of the air is going to be concentrated on the outside of the bend... like a river.... so thats where you want to measure)

Sadiq
08-25-2006, 03:11 PM
I dont know about that, it should just fire right up without problems.

JUST to be super double shure...... two things to check, I dont care how dumb this sounds but make SURE that the hfm is facing the right direction.... the arrow must be pointing in the direction of the airflow (i.e. arrow pointing to the rear of the car) and the plug on the HFM should be located @ about 10:00. (general rule of thumb is 10:00 but what you are actually trying to achieve is having the plug on the outside of the radius of the bend in the intake pipe to make sure it is able to read all the airflow...... the majority of the air is going to be concentrated on the outside of the bend... like a river.... so thats where you want to measure)

hfm is installed correctly (although more like at 11:00 - i couldnt rotate it once i got it on). there was extra noticeable power. it wasnt overwhelming, but its there.

raoke
08-25-2006, 04:03 PM
hows WOT sound? any difference?

Sadiq
08-25-2006, 06:02 PM
hows WOT sound? any difference?

not really, i dont think...