Help me ! 1jz misfire confusion

[5l_eater]

Ok so i finally got my 1j running was running good for couple days then had slight misfire so i decided to put new plugs in her.After putting the new plugs in she was running great so good i as confident enough for her first road test got about 30 feet from my house and she wouldnt go above 2 grand and had the worst misfire ever. So i trouble shooted for about a hour im stumped i let her cool down and she idles around 900 and u give her gas and she sputter and backfires still missing also.....p.s no codes heres some vids to show u what i dealing with the engine vid wistleing is the filter .

 

[Mk3runner]

Timing?

 

[5l_eater]

YEA I DUNNO DUDE why would it run fine then when i give it gas misfire ? u kno woulnt it runn like shit nonstop if it was timing

 

[Mk3runner]

No, it varies on how off it is. Check timing and go from there. All fluids and connections good. You said no codes right?

 

[Moy]

Plugs (too large gap), coils/ignitor (weak spark), throttle position sensor, boost leak maybe?

Only things I can think of, aside from timing as MK3runner said above...

 

[5l_eater]

Check engine light is on but wont flash any codes ????
spark plugs r from 2jzgte brand new
yea all connectors and hoses r good from what i can tell
i guess im gona have to check timing . im fucking confused

 

[GotTurbos?]

See if you can try someone else's ecu. They are pretty common to fail.

 

[Mk3runner]

Ding ding.. Ecu caps leaking perhaps?? What's your plug gap as well? Test coil maybe?

 

[honestabe]

Mine does the same thing if it hasn't ran in a while and been properly warmed up. It did the same thing to me the other day. It ran like shit, sounded like a Subaru WRX, and had very little power. The warmer it got the better it ran. Once it warmed up fully it ran just fine.

 

[5l_eater]

just went pulled plugs the gap is .9 so i gapped them to 1.3 which is stock .. but the plugs r black as shit for new plugs so its deff dummping fuel could this b cause im running 255?

 

[Mk3runner]

My 7m did that for a few hrs. Ecu had been dead cold for a year.

 

[Mk3runner]

Black and bad gap, running rich. Got spark LOL

 

[5l_eater]

no i checked my ecu the other day its fine

 

[Mk3runner]

You sure, 1j ecus are sometimes hard to spot. But yougot a decent check list now to see where your at. Your running drunk rich and timing is still unknown??

 

[5l_eater]

yeap timing is still unknown but with the new gap started her up and she runs good but thn started to misfire again and now wont hold idle.????how do u check timing i have a timing light ...i know it should be 8-12 lil help ....fuel pump causing it to run rich ?

 

[Mk3runner]

Oh I can't remember exacts for the 1j timing. Check the sub forum for it.

 

[GotTurbos?]

If you say your check engine light is on and its not giving you any codes when you jumper te1 and e1... that's pretty good evidence the ECU is bad. What did you do when you said you "checked it" the other day? Sometimes you can't really see the problem. The only sure way to check the ECU is to try one off of a good running car and see if it fixes it. Mine was doing the same thing with the codes when it was blown and my car ran like ass.

 

[Mk3runner]

Always carry a spare ecu LOL.

 

[super.secret.supra.club]

check the crank sensor. i washed my motor once and the crank sensor got wet. same thing, motor wouldn't rev over 2000 rpm. left it over night to let the sensor dry next day started and ran like a champ.

 

[Mk3runner]

Sensitive Lil guys