😂

I admit, I got a little tingle when he said, "at stoich."

Yes! Gumout is one of the best clearners I found.

Same here, except I use Chevron Techron. I've been using it since the late 90s in every car I've owned, every 3000-5000 miles. Never had an issue with injectors, even with my old 278,000 mile Honda.

@@djosbun: i had one V6 Windstar work van with 412, 000 miles, and another with 350,000 miles... NEVER an injector problem. Life-long diet of Chevron fuel religiously.

been using Sea Foam for years, great results. I put at least 50/60k a year on my trucks

My car is 17 years old dose not even have 200k on it yet one day I went to Walmart wasn’t even gone 30 minutes when I got back coolant temp was still reading warm. When I went to start all I got was crank , crank , crank for like 15 seconds still not start. Then I couldn’t not hear fuel pump prime so I switched some relays around I don’t know I was just trying anything. Then I got fuel pump back I could hear it again. Tried starting again crank , crank , crank vroom it start really rough idle was like 400 rpms the thing was about to die so I hit the accelerator and it smoothed out at 2000 rpms held it at 2500 rpms then brought it down slow and the idle fixed itself it was running really good now. Strangest thing ever I’m think some of the injectors might have been partly blocked and when I revel it up fuel pressure blew out whatever might been stuck. It was not misfiring cause check engine light would flash instantly but it was almost like it was too lean. Wish a had my scan tool with me but I didn’t at that time. Plus I know fuel pumps good cause I can give hit the car hard up hills now problem.

Hoes ur fuel trims? And your MPG? I have 2000 camry 2.2 5SFE

Skilled labor is not cheap and cheap labor is not skilled 😉

@@Tatem42069 do you mind if I use this quote?

My 2001 Tundra has 212K. Guess I'm keeping it for another 20 years.

my 2003 Matrix has 168K. Good ole Toyotas

Maybe on a lower mileage car, but at 400,000+, it's earned a new set. Also, since he charges for labor, it may not save the customer any money. A DIY could have a different $ decision point.

Those Micras from that era were pretty solid cars. Nissan built them quick and built them cheap, they were a dated car by the time they started production which was why they could be made cheap and were relatively reliable. My mum dad a 1996 Micra which she got rid of in 2007 - came to find out years later it had its last MOT in 2018 at 170,000 miles. Sounds like the rust got it looking at its last MOT.

good catch, but could just as easily be a scanner software error, needlessly doing the wrong conversion

@@hamercommaphilip, I think the scanner "scans" (i.e. reads what's in the ECU). My odometer has an analog display with the primary ring in MPH. I can change my odometer distance displayed from miles to kilometers at the touch of a button and like the odometer here, it does not indicate a unit of measure on the odometer face. If the scanner was reading 426k Miles the Kilometer Conversion would be 685k Kilometers. If the scanner is reading 426k Kilometers then the conversion to 265k Miles is correct. I don't think the scanner is doing any conversion. I think since the speedometer's primary ring is MPH, the E-PROM on the cluster PCB is recording in miles and the odometer is converting to kilometers for display because it's been selected. That seems more likely than the scanner making a massive error and simply displaying 426k Miles as 265k Miles.

@@OtisPlunk wouldn't be a massive error. All it would take is the scanner would always display miles, so it has simple code that says, if I read km then convert it to miles before displaying. The bug here would be the scanner reads 426K and thinks it's reading kilometers, so it "converts" this to miles and displays it.

Not if you do it right :) As long as the engine isn't turning, those drivers are OFF so it's a safe procedure.

That's not 4psi when it's running though, that's 4 psi difference left after pulsing the injector without adding more pressure to the fuel behind it. Think of a straw connected to a balloon - if the balloon starts at 40psi, and you open the straw for exactly 1 second, and one goes down to 22psi, and another straw only goes down to 27psi, just think about how much smaller the straw has to be to leave that extra 4 or 5 psi in the balloon. That's a huge difference in flow rate. The real test would be to test the flow rate, but that's much harder to do, so this residual pressure test is the next best thing.

@@gorak9000 I like that expansion

Hot weather will really expose fuel pump problem.

Only symptoms were some poor acceleration under heavy loads and recurring P0171. And hot restarts became problematic. Start and stall. The kid ran it out of gas a few times so I figured the pump was compromised.

They don't make those Nissans like they used to.

Must be a southern car lol

@@luismarty1685 That is correct. I also own a 2002 Maxima with 193,000 and an 2005 Altima 2.5L with 324,000. Yes all so cal cars, and many years of synthetic oil. I would not buy a new Nissan.

@@PineHollowAutoDiagnostics It is. I have learned something from all of your videos. Keep at it, Thank You!

@@davekvisler7409 Nice fleet

Yea what we call open loop a pre programmed set in the ecm. Closed loop when the computer takes input from all the sensors

I believed that was the case as well. What do fuel trims actually mean then at that point then, since the AFR sensors are no longer being observed? Is it just basing fuel delivery off of the MAF?

@@artemdevo3161 no computer has a set program that pulses the injectors once closed loop happens the computer starts taking data from the maf and o2 sensor so on

@@ryans413 I am talking about WOT open loop. What sensors are being used for the fuel strategy at that point?

@@artemdevo3161 Engine speed, coolant temp. Maybe inlet air temp.

Exhaust restriction will typically show rich. O2s read oxygen content only and spent air will show nothing so trims would have gone the opposite direction.