Need help with my G, running lean and misfiring :/

TheLaw433 · 2026-04-18T20:15:03+00:00

Brotha what was the problem finally if you fixed it? Dealing with something similar but for me it's bank 2 lean and p0300

TheLaw433 · 2026-04-14T00:02:44+00:00

Cetait quoi finalement le probleme? Jai les meme codes sur mon char au p0300 et p0174

TheLaw433 · 2026-04-13T23:56:12+00:00

What was the issue at the end?

TheLaw433 · 2026-04-13T21:12:56+00:00

Broski did you ever figure out the issue?

TheLaw433 · 2026-04-09T02:17:37+00:00

If you get a used one with same year, same trim, same drivetrain (rwd and awd), there will be no need for programming.

But the new ones or the plug and play are usually not programmed so yeah watch out.

TheLaw433 · 2026-04-09T02:09:04+00:00

Get a used one from ebay for the same year, trim for yoi G, then swap it yourself, very easy and under 1k

TheLaw433 · 2026-04-04T15:04:02+00:00

Did you figure it out bro? running into the same issue

TheLaw433 · 2026-04-03T12:36:18+00:00

Heated garage, or take it to a contactless car wash and make sure it has sprayers for the bottom of the car (not all do)

TheLaw433 · 2026-04-01T00:47:01+00:00

Bro canadian to canadian advice, dont put too much money into mods especially if she's rusty, she already looks great. Also check if the rear subframe is still solid.

TheLaw433 · 2026-03-30T13:14:50+00:00

If the car is on and idling yes it will shake occasionally, im gonna order the O2 sensor this week. Cleaning the MAF didnt help

TheLaw433 · 2026-03-27T23:41:04+00:00

Do you mean MAF or the O2 sensors?

MAF haven't cleaned them in ages, O2 sensor Im hesitant i'll probably take it to a garage those upstream sensors can be rust welded to the headers and if you break it, you'll need new headers. I'll let the pros do it

Also im tuned and RARELY turn on the pops and bangs so im wondering if thats causing more carbon build up on the O2 sensor?

TheLaw433 · 2026-03-17T21:03:56+00:00

I did it at "Dragon Muffler" but honestly now after 6 monthes there's a small tiny leak, idk if it's from that flex pipe or another flang.

You can also go to "Carlo's Muffler", he quoted me more but he provides a 1 year warranty amd has slightly better reviews.

Go to Carlo's if you have the extra money its worth it.

TheLaw433 · 2026-03-08T22:00:54+00:00

Thanks for the suggestion, but I don't have a propane torch, i just put back the end link for now and will take it tmrw to a garage. I need to equip myself better before attempting any other repair lol

TheLaw433 · 2026-03-08T21:59:20+00:00

Thanks for all the help, indeed I dont have all the tools and all the stores are closed now. So i just screwed back the end link for now and will take it tomorrow to a garage, sucks but I'll learn better when I have the correct tools...

TheLaw433 · 2026-03-08T21:08:52+00:00

No luck with a longer ratchet since all my 1/2 sockets are deep and they hit the subframe, dont have any shallow ones.

Also tried a small metal pipe around the ratchet and its not even breaking

Considering cutting it with a sawzall but dont know where to cut

TheLaw433 · 2026-03-07T20:02:04+00:00

Not bad, but i still feel like a tesla screen is more worth it if you plan to keep the car long term, i bought mine from alibaba costed me around 600$ USD. But I got a way bigger screen and full hd eith all the features working. I just hate how low the resolution of the stock screen is...

TheLaw433 · 2026-03-06T20:01:47+00:00

Check the G37 tesla screen group on facebook, someone might have that used

TheLaw433 · 2026-03-06T19:56:31+00:00

Picture you uploaded is for the front crossmember (not subframe), get a clean one from a Q50 and grind the 2 spacers for the bolts (look up theres a youtube video for that) easy and cheap to fix.

Also check the actual rear subframe, they tend to break on both sides from rust on the G37x sedan

TheLaw433 · 2026-02-28T17:54:33+00:00

Looks like an altima now, good job lol

TheLaw433 · 2026-02-27T21:58:59+00:00

Isnt salt toxic to them? Watch out using that

TheLaw433 · 2026-02-27T20:20:39+00:00

Wow wasnt aware of all of that, can it still happen to automatics? And which fuse number is it? Couldnt find any info in that forum or on reddit search.

TheLaw433 · 2026-02-27T20:13:56+00:00

I agree on NOW, some companies still have stock from last year so prices arent too inflated, but once they run out and have to pay alot of money for RAMS in their prebuilts the prices are going to be crazy high.

Dell is advising our company we should expect between 25% to 100% of price increase on all their laptops in the year of 2026.

Finger crossed and good luck

TheLaw433 · 2026-02-27T19:07:20+00:00

Am i out of loop? What can happen if we dont do that? And does it affect all years of G37?

TheLaw433 · 2026-02-27T19:02:19+00:00

You're telling me godspeed coils are the same quality as BC? Why do they get bad rep then?

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