8052JZ's NA-T Build
thanks for all the help so far on this!!
All the spark plugs seem to be pretty consistent and healthy and the pic of f the flooded cylinder.
Along with interior finished with all the new AEM gauges installed.
Under the radio; fuel pressure, oil pressure and water temp
Pillar pod; wideband and boost
****ty iphone pics....
Along with interior finished with all the new AEM gauges installed.
Under the radio; fuel pressure, oil pressure and water temp
Pillar pod; wideband and boost
****ty iphone pics....
with key off swap 1-2 with 3-4 and then turn the key on and see if it shoots fuel into 3 and 4 instead of 1 and 2. I wouldn't try and start the car like that though.
You will have to clean alot of fuel after that so instead you could also just test the wires.
You need a voltage tester or a light and test the 2 pins on the injector connectors. positive is the black/red wire and negative is the signal wire.
If there is voltage across those 2 pins or the light stays lit all the time with the key on engine off, its the ecu or the signal wire is shorted.
Since you have 2 of them It's more likely to be the ecu, and it is rare for signal wires to get shorted.
Last edited by Ali SC3; Apr 2, 2013 at 01:03 PM.
Yes, if it doing it at just key on with the engine off you can and should do a test.
with key off swap 1-2 with 3-4 and then turn the key on and see if it shoots fuel into 3 and 4 instead of 1 and 2. I wouldn't try and start the car like that though.
You will have to clean alot of fuel after that so instead you could also just test the wires.
You need a voltage tester or a light and test the 2 pins on the injector connectors. positive is the black/red wire and negative is the signal wire.
If there is voltage across those 2 pins or the light stays lit all the time with the key on engine off, its the ecu or the signal wire is shorted.
Since you have 2 of them It's more likely to be the ecu, and it is rare for signal wires to get shorted.
with key off swap 1-2 with 3-4 and then turn the key on and see if it shoots fuel into 3 and 4 instead of 1 and 2. I wouldn't try and start the car like that though.
You will have to clean alot of fuel after that so instead you could also just test the wires.
You need a voltage tester or a light and test the 2 pins on the injector connectors. positive is the black/red wire and negative is the signal wire.
If there is voltage across those 2 pins or the light stays lit all the time with the key on engine off, its the ecu or the signal wire is shorted.
Since you have 2 of them It's more likely to be the ecu, and it is rare for signal wires to get shorted.
thanks for the help tip
Ok just did Ali's recommended test across all injectors with the ignition key at on and fuel pump unplugged, it's ready 8.5v!! So I guess the aem ems needs to be sent to aem to get fixed of it can be?!
Does that mean I also need new Injectors? Just need to clarifie so I can get started on pulling them out.
Does that mean I also need new Injectors? Just need to clarifie so I can get started on pulling them out.
Last edited by 8052JZ; Apr 2, 2013 at 06:05 PM.
with the clips off the injector, the 2 that are bad should give you a reading when you test the voltage across the 2 pins (by sticking a probe in each pin).
the other 4 shouldn't give you any reading at all.
if thats the case then the ecu is bad, I don't think your injectors are bad.
If all 6 are giving the same reading, Im not really sure then just try swapping the clips then and seeing if it follows.
the other 4 shouldn't give you any reading at all.
if thats the case then the ecu is bad, I don't think your injectors are bad.
If all 6 are giving the same reading, Im not really sure then just try swapping the clips then and seeing if it follows.
well I brought the ems with me to work today so I can send it out to aem to get fixed if they even can. Ill be giving them a call and see what they say.... I guess I just need to bite the bullet and get the V2 
the od part is that sense all the clips are reading 8.5v I dont think all the injectors open? As far as I can see its only #1 and #2 that are stuck open. Even with 1 and 2 unpluged and fuel pump on, fuel is getting passed through the injectors into the cylinder filling it up?!
the od part is that sense all the clips are reading 8.5v I dont think all the injectors open? As far as I can see its only #1 and #2 that are stuck open. Even with 1 and 2 unpluged and fuel pump on, fuel is getting passed through the injectors into the cylinder filling it up?!
Hm, im not sure that test worked right then if all of them are reading the same. you will have to do another test cause that would make me think that its not the ecu.
If they are unplugged and still shooting fuel into the motor, then I would say your injectors are bad then.
It would seem you did loose 2 injectors at the same time. are they new or did you get them cleaned?
If they are unplugged and still shooting fuel into the motor, then I would say your injectors are bad then.
It would seem you did loose 2 injectors at the same time. are they new or did you get them cleaned?
Hm, im not sure that test worked right then if all of them are reading the same. you will have to do another test cause that would make me think that its not the ecu.
If they are unplugged and still shooting fuel into the motor, then I would say your injectors are bad then.
It would seem you did loose 2 injectors at the same time. are they new or did you get them cleaned?
If they are unplugged and still shooting fuel into the motor, then I would say your injectors are bad then.
It would seem you did loose 2 injectors at the same time. are they new or did you get them cleaned?
Shouldnt the clips not have any type or reading sense the ecu controls the ground for the injectors?
Thats what I thought, but if you don't have the injectors connected to the ecu they shouldn't be injecting fuel.
something definitely wrong with those 2 injectors if they are doing that unplugged.
the question is there also something wrong with your ems that caused it or did you just get unlucky with the injectors, hard to tell. you could always try out the oem injectors and see if there is still that issue.
sometimes reloading the cal file into the ems can help.
something definitely wrong with those 2 injectors if they are doing that unplugged.
the question is there also something wrong with your ems that caused it or did you just get unlucky with the injectors, hard to tell. you could always try out the oem injectors and see if there is still that issue.
sometimes reloading the cal file into the ems can help.
Thats what I thought, but if you don't have the injectors connected to the ecu they shouldn't be injecting fuel.
something definitely wrong with those 2 injectors if they are doing that unplugged.
the question is there also something wrong with your ems that caused it or did you just get unlucky with the injectors, hard to tell. you could always try out the oem injectors and see if there is still that issue.
sometimes reloading the cal file into the ems can help.
something definitely wrong with those 2 injectors if they are doing that unplugged.
the question is there also something wrong with your ems that caused it or did you just get unlucky with the injectors, hard to tell. you could always try out the oem injectors and see if there is still that issue.
sometimes reloading the cal file into the ems can help.
Have one other question. I'm wondering if getting 900cc or 1100cc injectors would be ok for this mild setup and not cause any issues. The reason I’m thinking to go that route is because I have another motor that is completely built and when the time comes to swap them over I don’t have to get new injectors again. If those or too big for this setup than I will have to go with their 650cc injectors. I much rather get the bigger CC injectors so I don’t have to get another set when swapping the built motor over.. Hope that makes sense
This is just another reason why I check the forums daily. The knowledge of people is out there. Lets hope the new injectors fixes the problem. BTW, the two gauge pod holder looks good, even though I like the three better. LOL