Search found 307 matches

by Alex170984
Sun Apr 21, 2019 8:12 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Jondee, Happy Easter by the way! The earth I'm referring to comes off the engine hook on the RHS of the head to a black connector. This then plugs into a wire bolted to the chassis strut tower. This is connected to a wire that bolts to the injector resister bolt on the chassis, sound longer winde...
by Alex170984
Sun Apr 21, 2019 10:47 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Does the head to chassis earth, via the electrical connector actually do anything?
by Alex170984
Fri Apr 05, 2019 2:51 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

I'm buying another gze loom and ecu for a good price incase one or both of mine are fubar.

I've got to take my loom off anyway, as it's too awkward tracing wires back with it all installed.
by Alex170984
Mon Apr 01, 2019 5:30 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Davew7,

I've already got inside the plastic trunking of that part of the loom, so it's just finding the time to get at all the wires. It's relatively easy to access, just time consuming.
by Alex170984
Mon Apr 01, 2019 3:14 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Here is a pic of how the factory insulates a two into one splice with several turns of black tape. When the splice is unwrapped it should look like the lower image. The factory uses an uninsulated butt crimp that is not easy to find in shops. So if your crimp looks like the one in the pic it is pro...
by Alex170984
Sat Mar 30, 2019 4:19 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi guys, I thought it was a little odd that the main wire which has the tee'd wire for the injector 1 earth, ran past injector 1 and disappears into the tangle of wires that goes toward the distributor. I did put my multimeter on the wire before the tee which gave spurious results above 0v which was...
by Alex170984
Thu Mar 28, 2019 1:44 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

The wire above that tees off, that goes to injector 1 earth.

The wire then going south, I don't know where that goes yet. I'm going to have to see if injector 2 ground comes off of this wire as well.
by Alex170984
Thu Mar 28, 2019 1:42 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

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by Alex170984
Wed Mar 27, 2019 4:10 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

I had a spare 45 mins earlier tonight to take the rail off and get inside that part of the loom... I traced back injector 1 ground wire to where it splits off from another ground. Where the injector 1 ground splits off the main ground wire, the rest of that wire looks like it goes towards the dizzy ...
by Alex170984
Tue Mar 26, 2019 7:50 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Can I have clarification as to where all the earthing points are please? Is the one for the rail/intake, on the engine hook that bolts to the head or is there another one somewhere? I would like to point out that I am using a 4AGE head, as a cam cap bolt sheared off inside my GZE head. The bolt was ...
by Alex170984
Sat Mar 16, 2019 3:20 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Unlimited86, I have acknowledged the suggestions and advice. I've recently had twins, 15 days ago to precise so my time on here and my car now, is very limited. I have tried all of the suggestions and I have come back to the same problem, of having 12v on my earth on injector no1. I have tested t...
by Alex170984
Thu Mar 14, 2019 3:15 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

In electrical wiring diagrams electricity is thought of as flowing from the higher potential 12V positive terminal to the lower potential ground terminal. Thus the "downstream" side of an item with some resistance will be the side that is closest to the negative or ground terminal. I have...
by Alex170984
Thu Mar 14, 2019 3:07 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Dave,

My engine came with the 4AGZE harness. Nothing had been modified to make it work.

I'm guessing one of the wires in the conduit has broken down. I'll get the rail off at the weekend so I can get to the mass of wires underneath.

Is there a earth point somewhere under all that lot?
by Alex170984
Wed Mar 13, 2019 4:37 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Dave,

This is on a converted AW11, but I did cover over 2000 miles in 2017 before I decided to rebuild the engine.

This is a problem that has occurred whilst the loom has come off.
by Alex170984
Mon Mar 11, 2019 4:19 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Dave,

Yes it does.

I've had it running when it's been flooded by the cold injector.

If the resistor pack was not giving the full amount of voltage, would this affect all the injectors?
by Alex170984
Sun Mar 10, 2019 4:46 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Here is the basic wiring schematic for the AW11 4AGZE injectors... https://i.imgur.com/SHX6RKn.jpg As you can see, the injectors are wired in pairs, and it is impossible for only one injector to have 12V on the downstream side if they are wired correctly. If you have 12V downstream on only one inje...
by Alex170984
Tue Feb 26, 2019 1:06 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

I have since cut off the first injector plug connector as there were only a few strands attached on the earth to the plug. I've tested the wires again. I have 12v on all power leads on all 4 injectors. I have dropping voltage to 0 on all 4 earths. Injector 1 had 12v straight away on injector 1 earth...
by Alex170984
Tue Feb 26, 2019 3:54 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Hi Dave,

The car doesn't run on on 3 I'm afraid to say. Tweaking the dizzy made no difference either. I didn't put my foot on the clutch though.
by Alex170984
Tue Feb 26, 2019 12:40 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

If that earth does have 12v, is that the reason my injector won't fire?

At least if it is that wire it'll be fairly easy to trace back down the line even though the rail will have to come off.
by Alex170984
Mon Feb 25, 2019 3:40 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Is there a way of testing injectors 2, 3 & 4 to see if they are firing?
by Alex170984
Mon Feb 25, 2019 3:24 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

I cannot start the car with 3 injectors. It won't run. I've tried. It ran for a few seconds but I think because I flooded it.

Why press the clutch in?

I've checked the injector to ground, it gives me 12v. Both sides on no.1 injector give me 12v. The rest give me 12v and 0v.
by Alex170984
Mon Feb 25, 2019 1:22 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

Re: 4AGZE Injectors Not Firing

Could this be the ground in the ECU or a physical ground visible in the engine bay?

And the impossible is possible :(

I'm assuming that my ground is touching a live somewhere? Also, as 1 and 4 are linked, it is taking out no.4 as well?

2, 3 & 4 have 12v one side.
by Alex170984
Sat Feb 23, 2019 9:51 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 49
Views: 1509

4AGZE Injectors Not Firing

Hi all, After my rebuild and trying to get the car running I have issues with fuel. I have fuel pressure, fuel and a spark. The car cranks but does not turn over. I have measured the voltage on all 4 clips off of the injectors, all disconnected at the same time and found that 3 out of 4 have 12v on ...
by Alex170984
Wed Jan 30, 2019 1:29 am
Forum: TECH: 4A-GE ENGINE
Topic: GZE/GE Fuel Pump Issues
Replies: 4
Views: 457

Re: GZE/GE Fuel Pump Issues

The COR in the boot, I cannot remember if I have the bracket it slots onto, actually bolted to the chassis. Does that act as the ground?
by Alex170984
Tue Jan 29, 2019 7:54 am
Forum: TECH: 4A-GE ENGINE
Topic: GZE/GE Fuel Pump Issues
Replies: 4
Views: 457

GZE/GE Fuel Pump Issues

Hi all, My motor is back in my engine after it's rebuild. I have had it cranking and running by spraying carb cleaner into the intake, but i have no power to my fuel pump or oddly the oil pressure switch. The fuel gauge is working, but this didn't before and I lost my dash lights, but they are now b...
by Alex170984
Wed Oct 03, 2018 6:10 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Spark Plug Gap
Replies: 6
Views: 683

Re: 4AGZE Spark Plug Gap

I found two broken spark plugs pre rebuild as I bought the grade 6 plugs by accident.
by Alex170984
Tue Oct 02, 2018 5:26 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Spark Plug Gap
Replies: 6
Views: 683

Re: 4AGZE Spark Plug Gap

So the mr2 manual saying 1.1mm is incorrect? The gap would also make sense as i was suffering from a mysterious misfire before i took my engine apart for rebuild.

Thanks Jondee
by Alex170984
Mon Oct 01, 2018 6:57 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Spark Plug Gap
Replies: 6
Views: 683

4AGZE Spark Plug Gap

Hi,

What is the preferred gap for spark plugs on the 4AGZE?

Also, does anyone have a part number for plugs required when running the big pulley and ABV mod?

Cheers
by Alex170984
Tue Aug 07, 2018 3:22 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE 02 sensor
Replies: 4
Views: 757

Re: 4AGZE 02 sensor

Anything with using this as a replacement?

http://service-parts.co.uk/denso-oxygen-sensor-dox-0107
by Alex170984
Tue Jul 31, 2018 5:24 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE 02 sensor
Replies: 4
Views: 757

Re: 4AGZE 02 sensor

It seems mine has only 1 wire.

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