LLT Fuel Injectors - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BenzinaBrera · 01-05-2017, 03:01 PM

If you ever get new injector and you want to throw these old ones away could you please courier 1 to me? Need to see how they fit on the alfa head design. The original 3.2 injectors for my alfa probably wont flow as much as the 3.6 injectors and i might need extra flow for future forced induction.

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tlavoie87 · 01-05-2017, 05:04 PM

the injector is not the limiting factor the HPFP will be

BenzinaBrera · 01-05-2017, 10:50 PM

Yes i know but the alfa has smaller injectors than the camaro. The hpfp is the same as the camaros though thats why i just need to see if the camaro injectors fit.

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RichSS2006 · 01-10-2017, 06:58 AM

Quote:

Originally Posted by MJWO3901

I've disconnected the fuel line and the bolts affixing the fuel rails to the engine. Can't seem to get them off the car though due to clearance issues.

Can anyone offer any insight to help me out?

I've removed and replaced the injectors on a LLT. It's difficult due to the clearance between the heads. There is a very specific sequence outlined in the GM Service Manual. I had to follow it closely, otherwise you can't remove the fuel rails or the injectors.
Get a hold of the book. BTW the engine I was working on was out of the car. In the car will be even more difficult. Pay attention to the high pressure lines and the fuel regulator connection on the back of the block. Good luck, Rich

Briankach2 · 02-17-2020, 08:07 PM

Can anyone provide some recommendations? I might have faulty injectors on my 2010 Camaro V6...

Issue:
During idle and driving I maintain around 18% on both bank 1 and 2 long term fuel trims, 0 to 3% on both bank 1 and 2 short term fuel trim, both upstream O2 sensors oscillate between 0.1 to 0.9V, fuel pressure stays between 40 psi to 75 psi. One think I did notice the long term fuel trim actually going up to 21% or a little higher on both banks while driving. Any help would be greatly appreciated!!!

CamaroBarb · 02-18-2020, 01:10 PM

I'd start a new post and include all your cars info mileage etc.....

SonicChris · 02-19-2020, 12:18 AM

Quote:

Originally Posted by KMPrenger

Are you sure this isn't timing chain related? Has that been replaced yet? To go that long on this engine with no timing chain replacement or related engine codes would be surprising.

I'm on my stock chains, 101k miles. Cammed as well!

'10CamaroDude · 05-29-2020, 02:05 AM

My misfires were VVT Solenoids.

Any time you replace:
Spark plugs
Coil Packs
VVT Soleniods
Fuel Injectors
CAM Sensors
Intake

Pull fuse #5 and #20, and wait. Then plug them back in and do the idle relearn.

Mine ran phenomenal after doing so.

ECU was using learned values as parts wear, on NEW parts, so resetting the
Keep Alive Memory took care of all that.

The VVT solenoids are pulse width modulated, and they have a resistance to their
coils. Well, replacing them with new ones, will change the movement of the new
VVTs. Being new, they may open too far, or not enough. The OEM VVTs were
around 8-ohms, the new ones were as high as 10. So, they were not being
controlled effectively. So, resetting it all, drastically changed the performance
of the car. I thought it just did not like the new VVTs, but it was the parameters
the ECU was using. It has to be reset.

cease · 07-01-2020, 08:34 PM

I dealt with this issue last week. i have a 2010 RS with 99800 miles (no mods), original owner. my check engine light came on at slow speeds, lost power, white smoke came out of the rear mufflers.

i have a friend who is a chevy mechanic at a local dealer. he scanned the vehicle (obd2) and told me injector #5 was bad. he recommended i replace all 6 injectors, 2 small metal fuel lines and a new gasket for the manifold plate cover.

i didnt keep any injectors. i trashed them

car runs great. all new parts are GM products.

Cease

01-05-2017, 03:01 PM	#15
BenzinaBrera Drives: Alfa Romeo Brera V6 Join Date: Jan 2013 Location: South Africa Posts: 46	If you ever get new injector and you want to throw these old ones away could you please courier 1 to me? Need to see how they fit on the alfa head design. The original 3.2 injectors for my alfa probably wont flow as much as the 3.6 injectors and i might need extra flow for future forced induction. Sent from my SM-N910C using Tapatalk __________________ [/URL] Alfa Romeo- Only passions, great passions can elevate the soul to great things

01-05-2017, 05:04 PM	#16
tlavoie87 Built Not Bought Drives: 2010 Twin Turbo LFX Join Date: Jun 2016 Location: Massachusetts Posts: 618	the injector is not the limiting factor the HPFP will be __________________ 2010 Twin Turbo LFX In Memory of my DAD Gone but never Forgotten 2014 "Built Not Bought!' Sponsors: OverKill Motorsports

01-05-2017, 10:50 PM	#17
BenzinaBrera Drives: Alfa Romeo Brera V6 Join Date: Jan 2013 Location: South Africa Posts: 46	Yes i know but the alfa has smaller injectors than the camaro. The hpfp is the same as the camaros though thats why i just need to see if the camaro injectors fit. Sent from my SM-N910C using Tapatalk __________________ [/URL] Alfa Romeo- Only passions, great passions can elevate the soul to great things

02-17-2020, 08:07 PM	#19
Briankach2 Drives: 2010 Camaro RS Join Date: Dec 2009 Location: Vero Beach, FL Posts: 1	Can anyone provide some recommendations? I might have faulty injectors on my 2010 Camaro V6... Issue: During idle and driving I maintain around 18% on both bank 1 and 2 long term fuel trims, 0 to 3% on both bank 1 and 2 short term fuel trim, both upstream O2 sensors oscillate between 0.1 to 0.9V, fuel pressure stays between 40 psi to 75 psi. One think I did notice the long term fuel trim actually going up to 21% or a little higher on both banks while driving. Any help would be greatly appreciated!!!

02-18-2020, 01:10 PM	#20
CamaroBarb Banned Drives: cheby Camaro Join Date: Aug 2019 Location: usa Posts: 575	I'd start a new post and include all your cars info mileage etc.....

05-29-2020, 02:05 AM	#22
'10CamaroDude Account Suspended Drives: 2010 Camaro LS Join Date: Nov 2019 Location: Pgh Posts: 739 View My Garage	My misfires were VVT Solenoids. Any time you replace: Spark plugs Coil Packs VVT Soleniods Fuel Injectors CAM Sensors Intake Pull fuse #5 and #20, and wait. Then plug them back in and do the idle relearn. Mine ran phenomenal after doing so. ECU was using learned values as parts wear, on NEW parts, so resetting the Keep Alive Memory took care of all that. The VVT solenoids are pulse width modulated, and they have a resistance to their coils. Well, replacing them with new ones, will change the movement of the new VVTs. Being new, they may open too far, or not enough. The OEM VVTs were around 8-ohms, the new ones were as high as 10. So, they were not being controlled effectively. So, resetting it all, drastically changed the performance of the car. I thought it just did not like the new VVTs, but it was the parameters the ECU was using. It has to be reset.

07-01-2020, 08:34 PM	#23
cease Drives: 2010 v6 rs 2lt Join Date: Jul 2012 Location: L.A. county Posts: 5	I dealt with this issue last week. i have a 2010 RS with 99800 miles (no mods), original owner. my check engine light came on at slow speeds, lost power, white smoke came out of the rear mufflers. i have a friend who is a chevy mechanic at a local dealer. he scanned the vehicle (obd2) and told me injector #5 was bad. he recommended i replace all 6 injectors, 2 small metal fuel lines and a new gasket for the manifold plate cover. i didnt keep any injectors. i trashed them car runs great. all new parts are GM products. Cease