Injector / fuelling issue?
Thread Starter
Joined: May 2008
Posts: 8
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From: Sheffield, South Yorks, United Kingdom
Injector / fuelling issue?
Right, Building my CRX Del Sol Turbo:
Was running fine, then I removed the Apexi AFC Neo management for an upgrade to Hondata S300J!
After removing the Apexi - I was using another car but I needed to use the Sol so I repaired all the wiring disconnected the actuator and was going to pootle it about.
Fitted the STOCK ECU and went to turn it over - for some reason it turned a few times and locked itself! I removed the plugs and cylinders were full of fuel! I removed and tried again - same problem!
Ok so I figered, standard injectors but higher fuel pressure its just not firing up and flooding it!
Finally fitted Hondata and got a base file and modded this for the stock injectors and higher fuel pressure - fitted it all up to the car, removed the fuel from cylinders and had another go..... locked again!!
Right, removed a plug and just turned on the ignition on - the injectors are fully open!! It flooded the cylinder in seconds!
Now I can only guess this is a wiring issue, but I am ***** and finding wiring faults soooooo please can someone help!!
Injectors are fully open before the engine is cranked!
Mike
Update:
Right just a little more information - me and a friend with a multimeter:
The injectors have got a constant 12V supply to them - these wires are yellow with a black strip and goes to a distribution block on the inside of the O/S/F wing - disconnect the block and no power feed!
The grounds - following wires (red, light blue, brown, yellow) back to the connector at the inside of the N/S/F wing and then back to the ECU these have a slightly fluctuating resistance of 1.55-1.65kohms - this was the same reading from the chassis ground and internal ECU pins.
sdots: What is the ground that you are talking about? I could not see one (B16A engine) Looking at the wiring diagrams there is no ground?
Thanks for everyone’s helps in this matter.
Mike
Was running fine, then I removed the Apexi AFC Neo management for an upgrade to Hondata S300J!
After removing the Apexi - I was using another car but I needed to use the Sol so I repaired all the wiring disconnected the actuator and was going to pootle it about.
Fitted the STOCK ECU and went to turn it over - for some reason it turned a few times and locked itself! I removed the plugs and cylinders were full of fuel! I removed and tried again - same problem!
Ok so I figered, standard injectors but higher fuel pressure its just not firing up and flooding it!
Finally fitted Hondata and got a base file and modded this for the stock injectors and higher fuel pressure - fitted it all up to the car, removed the fuel from cylinders and had another go..... locked again!!
Right, removed a plug and just turned on the ignition on - the injectors are fully open!! It flooded the cylinder in seconds!
Now I can only guess this is a wiring issue, but I am ***** and finding wiring faults soooooo please can someone help!!
Injectors are fully open before the engine is cranked!
Mike
Update:
Right just a little more information - me and a friend with a multimeter:
The injectors have got a constant 12V supply to them - these wires are yellow with a black strip and goes to a distribution block on the inside of the O/S/F wing - disconnect the block and no power feed!
The grounds - following wires (red, light blue, brown, yellow) back to the connector at the inside of the N/S/F wing and then back to the ECU these have a slightly fluctuating resistance of 1.55-1.65kohms - this was the same reading from the chassis ground and internal ECU pins.
sdots: What is the ground that you are talking about? I could not see one (B16A engine) Looking at the wiring diagrams there is no ground?
Thanks for everyone’s helps in this matter.
Mike
Honda-Tech Member
Joined: Jun 2008
Posts: 291
Likes: 0
From: wexford, Ireland, Ireland
Re: Injector / fuelling issue?
the very same thing happened to me a few weeks back only mine filled my whole magnus intake manifold and started flowing out the air filter because i didnt notice what was going on.this only happened because i disconnected the 4pin connector on the L/H strut tower.I had it off while checking something and forgot about it.so id check things out around there and along tha circuit, the 4pin connector is for the ecu signal for each injector.good luck anyway
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