Is my timing off, internaly??

[240man91]

on the ecu thing i am not sure i got to lookn when i sent mine off to have it tuned they took that lable off but i was lookn on line an there is tons of numbers lol had to say whats whats can some on else chime on this one haha

[S13_RB25]

Lol thanks, yea so someone else want to chime in on that??

[240man91]

yea cause i have seen 10 14 24 31 on the ecus lol so i am sure it is 24 but dont want to say it is for sure cause i realy dont know i beleave mine said 24

[S13_RB25]

Got a quick question, can i use the SOHC maf on a DOHC ka?? Cause this weekend im going to put the new coolant temp sensor in and get a new O2 sensor to see if that helps the situations. I thought might as well try switching the mafs...

[240man91]

No you caint

[S13_RB25]

Well after putting in the new coolant temp sensor and the o2 sensor, it didn't make no difference. So then, my neighbor started to help me, and he started pulling the injector plugs and when he pulled the 2nd injector plug, nothing happened. So im gonna get a new injector and put it in!! That was the problem the whole time lol...

[240man91]

good deal let us know if it run good after

[S13_RB25]

Well I put the new injector in and no luck , it still miss fires. But i took the spark plugs out to re-gap them and they looked like this:


So is it picking up oil? If so what can i do at this time?? And on a side note when i spray carb cleaner into the sir filter the idle is more stable and it sounds a whole lot better, like its not even miss firing.

[240man91]

looks rich

[S13_RB25]

So would that have anything to do with the miss fire on idle?? Also what can I do to get the afr fixed?? I mean it's not on the insurance yet and it's not registered so I can't take it any where...

[240man91]

the ecu dose all that for u um try cleaning the plugs an put them back in make sure gap is right an do u have a timing light if so start it up an see where u are at an if u are off try turning the distriber a bit u doint have any vacum leaks do u.

[240man91]

post a viedo of it running if u can it will help try an make it at least 2min long

[S13_RB25]

There's the video as requested. I warmed up the car before recording the video so...

[240man91]

is that a rebulit motor? sounds like a miss fire, what dose it do when u hold it up at say 2.5k
dose it miss more or smooth out?

[240man91]

check egr block off plate if you used one use starter spray to check for vacuum leaks it will cause motor to rev up if there is one

[S13_RB25]

is that a rebulit motor? sounds like a miss fire, what dose it do when u hold it up at say 2.5k
dose it miss more or smooth out?

The motor is rebuilt and when i hold it, say around, 1.5k rpms, its more smooth than what its like at idle. Also when i spray the maf cleaner into the filter the idle gets better. Ill try check for leaks at the egr block off plate tomorrow...

[Boostoff]

Have you re-torqued the headgasket? Did you re-use the head bolts or did you get new ones? What is your entire setup, list your mods please. You may want to look into getting a replacement O2 (Lambada) sensor.

[S13_RB25]

Have you re-torqued the headgasket? Did you re-use the head bolts or did you get new ones? What is your entire setup, list your mods please. You may want to look into getting a replacement O2 (Lambada) sensor.

Well the mod list is as follows:
-Head was decreased, pressure washed and tested
-New OEM pistons, rings and King bearings
-ARP rod bolts, mains, and head studs
-Cometic MLS headgasket
-Nismo colder thermostat
-Agency Power silicon rad hoses
-Godspeed rad with 2 12' e-fans
-New #2 fuel injector, the old one wasn't spraying
-New rotor, cap, plugs, wires and coil
-New engine coolant temp sensor
-New O2 sensor
-Cleaned the IACV
-Emissions removed
-5 speed swap
-Meagan headers, down pipe, test pipe to a ebay 3in exhaust with 4 in tip
-Circuit Sports polyurethane motor, transmission mounts and coolant overflow tank
-MRG Copper Exhaust Manifold Gasket
-Autozone air filter

That's all i can remember as of right now!

[240man91]

man that thing should run good. lol i dont think o2 will make it run like that i have a buddy with a sr an he dont have his pluged in just runs rich. an that is strang that sprayn that in there makes it run better. dose it idle up when u do that an, did you bulid the motor or uyou have a shop put it together?

[S13_RB25]

I built it and the idle goes up, say it idles at 750 with a miss fire and it'll go to 850 and be more stable... But ima check for vacuum leaks again. What else should I check??

[240man91]

have you ran a compreeion test on it has it ran like this sence u put it back together

[S13_RB25]

Yea it has miss fired ever since but I haven't done a compression test yet... But will by next weekend, got finals at college...

[240man91]

ok try that cause if u have a bad copression in one it wont run right an it will run like it is now

[S13_RB25]

But all the rings and pistons are new. Either if thats the case what would be my best option after that??

[S13_RB25]

i just checked for codes and its saying 34, knock sensor. I do see a crack on the plastic so ima get a new one and put it in and go from there...

[240man91]

thyat could make it run like crapy an if its low compresson the u put some thing in wrong

[S13_RB25]

Also the knock sensor harness for me looked like this:

^That connector is for the main engine harness from the knock sensor, notice its 2 wires.

^This is the knock sensor end and is only one wire, while the black wire didn't reach the knock sensor. So i made my own and made it through the hole so it can connect to the knock sensor.
The whole wire looked like this when i pulled it out:


So if one end has two wires coming out isn't the other end supposed to have two wires going in??

[240man91]

that or ground to body

[S13_RB25]

that or ground to body

Its ground i've read but would it make a difference if i ground it to the block or the IM or the body??

[240man91]

if theres no wire for it then groumd it to the block