Need help asap

mike_n55 · 06-16-2021, 04:31 PM

Why is it that when i start my car it sounds like it is cammed.. Recently just installed Port Injection with 750cc injectors. Stage 2.5 lpfp 3.5 Bar TMap sensor, replaced sparkplugs with NGK.

thejeremyman9 · 06-16-2021, 06:53 PM

Quote:

Originally Posted by mike_n55

Why is it that when i start my car it sounds like it is cammed.. Recently just installed Port Injection with 750cc injectors. Stage 2.5 lpfp 3.5 Bar TMap sensor, replaced sparkplugs with NGK.

Well you changed 3 things so start with those...

Scan for codes first obviously.

Make sure 3.5 bar tmap flash option is checked in flash options.

Pressure/smoke test for vacuum leaks.

Make sure plugs/coils installed correctly.

Make sure the injectors are disabled at idle and tuned correctly.

Pussiwillow · 06-16-2021, 07:20 PM

Since Jeremy already answered, thing sounds cool at idle atleast lol

n55david · 06-16-2021, 07:55 PM

sounds awesome..

read codes

you have a custom tune for the port injection correct?

either tmap not set correctly or.issues with plug install likely.

06-16-2021, 04:31 PM	#1
mike_n55 New Member 0 Rep 6 Posts Drives: 2014 335i xdrive Join Date: Jan 2021 Location: New Jersey iTrader: (0)	Need help asap Why is it that when i start my car it sounds like it is cammed.. Recently just installed Port Injection with 750cc injectors. Stage 2.5 lpfp 3.5 Bar TMap sensor, replaced sparkplugs with NGK.
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06-16-2021, 07:20 PM	#3
Pussiwillow Major 521 Rep 1,148 Posts Drives: Alpine white 2014 335i msport Join Date: Aug 2020 Location: Arizona iTrader: (2)	Since Jeremy already answered, thing sounds cool at idle atleast lol
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06-16-2021, 07:55 PM	#4
n55david Check out my Youtube @n55david! 1296 Rep 3,533 Posts Drives: 2017 m240i, 2015 X3 x35i Join Date: Aug 2018 Location: Michigan USA iTrader: (0) Garage List 2017 m240i xDrive [0.00] 2015 X3 x35i [0.00] 2015 335i xdrive [0.00]	sounds awesome.. read codes you have a custom tune for the port injection correct? either tmap not set correctly or.issues with plug install likely. __________________ 2017 m240i xDrive 10.99@122.86mph bootmod3 stage 2+ ots 2015 335i xDrive 10.95@124.99mph w/bm3 - SOLD 2015 X3 x35i pwg 12.96 catless w/bm3 stage 2 93 ots IG: @n55david For pics and updates! Youtube: @ n55david For videos or Racing etc
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