cyl 3 & 4 are lean - Page 2

Trochoidal · 05-14-2021, 06:29 PM

Did you solve your lean condition?

s346k · 05-15-2021, 11:52 PM

yes, but no. good news, bad news. i changed a couple injectors today. it cleaned up the stft and suspected lean condition. however, it did not solve the popping at high rpm issue. i swapped the plugs & wires after i realized it still has issues. didn't test that out yet because of rain. most likely going to smoke test the car tomorrow in search of vacuum leaks. fwiw all of my original injectors looked perfectly fine, 0 build up or any damage otherwise. i was also going to snap a pic of the ball end of a USED fuel line to show exactly what happens when you tighten the lines up and why it is difficult to reuse them, but i forgot. ill get one tomorrow.

heres a pic slightly encompassing the colossal waste of time i endured today. i was very surprised at the lack of torque applied to the fuel line connections.

edit: also surprised at GMs use of velcro to secure the injector harness to the rails.

s346k · 05-17-2021, 03:16 PM

new plugs and wires cleaned up the random popping it still had. got it all squared away just in time to get drug by a coyote car, such is life.

on a side note, i will never buy another msd plug wire, ever.

Trochoidal · 05-17-2021, 04:35 PM

Damn the work you put it to track down your issue but hey it’s good now. Those random annoying coyotes.

Taylor huh? What wires did you use to replace the Taylor’s? I have Hinson’s for when headers get installed.

s346k · 05-17-2021, 04:52 PM

that was the second set of msd wires i had on the car in 2 years. if you look closely in the photo you can see that 2 of them had further been replaced. after pulling them again i noticed that some of the boots were charred & crispy from heat. by the time i priced out yet another set of msd wires & good boots, it was too much money to use a plug wire i didnt like to start with. i was pretty close to a set of granitelli wires, so i bought those.

i still think the car had a fueling issue, i find it unlikely that the o ring on that port was bad, i looked at it and decided to reuse it. smoked the car anyway, no vacuum leaks.

05-14-2021, 06:29 PM	#15
Trochoidal Drives: 2017 Camaro 2SS A8 Join Date: May 2019 Location: USA Posts: 1,656	Did you solve your lean condition? __________________ Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“

05-15-2021, 11:52 PM	#16
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	yes, but no. good news, bad news. i changed a couple injectors today. it cleaned up the stft and suspected lean condition. however, it did not solve the popping at high rpm issue. i swapped the plugs & wires after i realized it still has issues. didn't test that out yet because of rain. most likely going to smoke test the car tomorrow in search of vacuum leaks. fwiw all of my original injectors looked perfectly fine, 0 build up or any damage otherwise. i was also going to snap a pic of the ball end of a USED fuel line to show exactly what happens when you tighten the lines up and why it is difficult to reuse them, but i forgot. ill get one tomorrow. heres a pic slightly encompassing the colossal waste of time i endured today. i was very surprised at the lack of torque applied to the fuel line connections. edit: also surprised at GMs use of velcro to secure the injector harness to the rails. Attached Images __________________ 2016+ camaro: everyone’s first car Last edited by s346k; 05-16-2021 at 10:01 AM.

05-17-2021, 03:16 PM	#17
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	new plugs and wires cleaned up the random popping it still had. got it all squared away just in time to get drug by a coyote car, such is life. on a side note, i will never buy another msd plug wire, ever. __________________ 2016+ camaro: everyone’s first car

05-17-2021, 04:35 PM	#18
Trochoidal Drives: 2017 Camaro 2SS A8 Join Date: May 2019 Location: USA Posts: 1,656	Damn the work you put it to track down your issue but hey it’s good now. Those random annoying coyotes. Taylor huh? What wires did you use to replace the Taylor’s? I have Hinson’s for when headers get installed. __________________ Roto-Fab w/sound tube delete, Katech ported TB, Pray IM, Velossa, DD side markers, DSX FF, UPR Catch can, Halo brace, My custom vent gauge pod Originally Posted by arpad_m - “Aww, yet another oil thread with almost the same question in the OP“

05-17-2021, 04:52 PM	#19
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,396	that was the second set of msd wires i had on the car in 2 years. if you look closely in the photo you can see that 2 of them had further been replaced. after pulling them again i noticed that some of the boots were charred & crispy from heat. by the time i priced out yet another set of msd wires & good boots, it was too much money to use a plug wire i didnt like to start with. i was pretty close to a set of granitelli wires, so i bought those. i still think the car had a fueling issue, i find it unlikely that the o ring on that port was bad, i looked at it and decided to reuse it. smoked the car anyway, no vacuum leaks. __________________ 2016+ camaro: everyone’s first car

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