what makes you think you need to replace your injectors?
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what makes you think you need to replace your injectors?
basically i need an auto electrician to check out what the problem is with my EFI
so like it may be injectors ECU or wiring
looks like injectors arent firing out petrol so it may be blocked but dont think all 4 injectors will be blocked?
waiting for someone to doa pulse test on it aye
if all 4 aren't firing, I HIGHLY doubt it has anything to do with the injectors.
yeh thats what i thought ias well, im thinking wiring?
ECU looks fine, it reports errors and stuff?
would me cranking the car and doing a test on the wires be sufficient? or should i do a pulse test? which may cost to grab someone to do
ok i did a test.
i put my car on (just before ignitiating the engine, so electrical would go on right..
got the ECU out and got a tester which lights up if the line is active
plugged it into
A1,A2,A3,A5 for the injectors it didnt light up? is this normal?
i found this kool spreadsheet which tells me the wires
http://www.ff-squad.com/tech/wiring/obd1.ecu-pinout.zip
pss i knoe theres power going into it i tested other lines which was active so it cant be that there is no power going to the ECU
are you getting fuel pressure at the fuel rail?
When you turn the engine to the on position, do you hear an audible click? Does the check engine light come on for a couple seconds and turn off?
My guess is that there isn't an audible click a second or 2 after the key is turned to on, and the cel comes on and stays on.
well...
the rails and fuel is pumping petrol..
opened fuel rail and took injectors out theres petrol in there and pumping into it
im not sure about the engine light how do i check that out?
issit normal for the wires not to be active when its on
btw thanks alot dude ;D
to make certain i guess what the actual problem is.
how can i tell what ECU i have? this is a JDM d15B engine with im guess stock ecu with it? there a way or a code i need to look for on the ecu!
if you're getting fuel at the rail, disregard what I'm saying.
The way to check the engine light like I was suggesting is to put the key in the ignition, turn it to on, and look at the check engine light.
which one is that?
im a noob ;D
if you could provide pics of a tacho and circle it i can see!
what would you think it is.
if the rail is getting petrol
injectors arent injecting
u dont have a check engine light cuz u have a aftermarket cluster. U need to get an OEM one...
As for injectors, i reckon doing an continuty test to see if the wires are not cut or splice anywhere from the ECU to the injectors
yeh
i tried to eck out the wire to the injectors, but i guess no time during weekdays
ill have to get an auto electrician to check it out, but i got a mechanic whos gna do the pulse testing for me to see if there sufficient power to the injectors, i guess this will determine if its a wiring problem or ECU.
trying to find out what ECU i have, i think from research its a p28 but not certain.
from research
i found this :
US version (smog test required ), ECU P28.
JDM version P08 ECu but little lean on the gas.
Could use P06 but got to be chipped for vtec sensor
is this correct?
how can i tell what ECU i currently have, i think i got p28
The ecu grounds the injectors thru the A1,A2,A3,A5 wires so by the sounds of it your using a test light,it will not light up because the voltage has already dropped across the injector coil.Your effectively testing 0V at the ecu,which is what your tester is reading,ie no light.Quote:
Originally Posted by XP02ED
You need to test at the injectors the other wire that is the same colour on all 4 injectors.Turn ignition on,dont start engine,& see if there is 12V on these wires.If not,then start looking at the main relay.Or post back the result & we will try & narrow it down a bit further.
Can you here the fuel pump prime when u turn on ignition?
Look at the white sticker on the side of the ecu to identify it,if no sticker I think its marked on the PCB inside the ecu,or even maybe close to the connectors on the PCB,u might be able to see it without opening it up,cant quite remember....