Search found 2361 matches

by jondee86
Sun May 26, 2019 2:31 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE SC Runs Rough at WOT
Replies: 2
Views: 49

Re: 4AGZE SC Runs Rough at WOT

Before this all went south my idle was very high--2000rpm plus. I couldn't get it to consistently stay at a normal speed. You should check your ignition timing. High idle is one sign that the ignition is too far advanced. Engine kicking back when cranking is another sign. If the timing is good then...
by jondee86
Sun May 26, 2019 2:23 am
Forum: TECH: 4A-GE ENGINE
Topic: poltergeists in my car, HALP!
Replies: 1
Views: 19

Re: poltergeists in my car, HALP!

You could check to see that the flapper thing inside the AFM moves freely, and is not jammed with crud or dragging on the side walls. How far the flapper opens tells the ECU how much fuel to inject. If the flapper is not free to move, air will squeeze past but you will run lean. That would tie with ...
by jondee86
Sat May 25, 2019 3:13 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE SC Runs Rough at WOT
Replies: 2
Views: 49

Re: 4AGZE SC Runs Rough at WOT

The noise filter is a capacitor (condenser) with two wires and a metal clip. The clip is purely a way to clamp the noise filter under the head of any convenient bolt, and it is not part of the electrical circuit. One lead connects to the 12V feed to the ignition system, and the other wire connects t...
by jondee86
Wed May 15, 2019 11:44 pm
Forum: TECH: Corolla AE86
Topic: USDM AE86 TACH
Replies: 13
Views: 518

Re: USDM AE86 TACH

On the USDM GTS the tacho gets its signal from the black wire on the igniter. The SR5 will get a signal direct from the coil negative. The black wire finds its way to the big square(ish) plug on the firewall behind the engine, and from there to the OEM tacho. According to this diagram... http://www....
by jondee86
Fri May 10, 2019 8:42 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4agze swap wiring woes!
Replies: 6
Views: 212

Re: 4agze swap wiring woes!

Just a few random comments... - on the GZE as I understand it, the clutch is disengaged when out of boost. So during cranking the s/c should not be turning. - there is a bypass valve with a vacuum servo that opens at light load to allow air to bypass the s/c. This should be open when cranking. - it ...
by jondee86
Fri May 10, 2019 4:13 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4agze swap wiring woes!
Replies: 6
Views: 212

Re: 4agze swap wiring woes!

As far as I can figure the parts you have should work... 89661-12170 ECU, AE92, 4AGZE 22250-16070 AFM, AE92, 4AGZE 19300-16010 CAS, AE92, 4AGZE 89621-12030 Igniter, AE92, 4AGZE 90919-02179 Coilpack, AE101, 4AGZE 89452-20050 TPS, AE92, 4AGZE For unknown reasons there is virtually no technical informa...
by jondee86
Thu May 09, 2019 2:31 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4agze swap wiring woes!
Replies: 6
Views: 212

Re: 4agze swap wiring woes!

1. The ECU grounds are the three (+/-) brown wires attached to a single brass ring connector. These must be bolted down and the usual place is on top of the intake manifold towards the rear of the engine. 2. ECU sensors are supplied with 5V by the ECU and the sensor ground wires must be connected to...
by jondee86
Wed May 01, 2019 2:56 am
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 195
Views: 40059

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

Saw some signs of carbon tracking when I was changing plugs, so went looking for a set of replacement rubber tips for the OEM 1NZ coils I'm using. Turns out they are not stocked by anyone in NZ and the local Toyota dealership wants $26 each for them. So I had a look to see what was available from Ch...
by jondee86
Sun Apr 21, 2019 9:06 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

A ground wire (with a connector) that runs from the engine hook bolt to a chassis bolt sounds legit. If it has a ring terminal on each end it will be factory. But there is no reason for the resistor pack to have a ground wire, so I don't know why that would be there ? At this stage I wouldn't be too...
by jondee86
Sun Apr 21, 2019 5:40 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

Does the head to chassis earth, via the electrical connector actually do anything? Not sure which ground wire you are referring to, but if the factory put a ground wire from the head to the chassis, it was done for a good reason. Ground wires are provided to ensure that there is a low resistance re...
by jondee86
Fri Apr 19, 2019 4:41 pm
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 195
Views: 40059

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

This was my second attempt at this hillclimb, and the weather was perfect... https://i.imgur.com/3spkKfs.jpg Full field of 55 cars ranging from factory stock to dedicated racecars. And if you are into stealth, let me tell you that a showroom stock Focus RS with sticky tires doesn't sound quick, but ...
by jondee86
Sat Apr 13, 2019 4:48 pm
Forum: TECH: 4A-GE ENGINE
Topic: ITB's, Coilpack, Haltech ECU installation for 16v
Replies: 2
Views: 158

Re: ITB's, Coilpack, Haltech ECU installation for 16v

This is a very familiar story :) You are not the first one to discover that installing an aftermarket ECU in an AE86 can become your worst nightmare !!! I went down this road myself a few years ago (ITB's and ECU) and know the feeling when you are at the "crank but no start" stage. There i...
by jondee86
Sat Apr 13, 2019 2:44 pm
Forum: TECH: 4A-GE ENGINE
Topic: Looking to build: 4age vs. 5age vs. 7age
Replies: 12
Views: 567

Re: Looking to build: 4age vs. 5age vs. 7age

This has been for sale for a while....

https://www.trademe.co.nz/motors/car-pa ... 3c78af-002

Cheers... jondee86
by jondee86
Wed Apr 10, 2019 2:26 pm
Forum: TECH: Corolla AE86
Topic: USDM AE86 TACH
Replies: 13
Views: 518

Re: USDM AE86 TACH

MSD puts out a 12V square wave tacho signal and you just need to convert that to a "voltage spike" to drive an old school tacho. Most DIY converters use an old relay coil and a transistor with some other bits and pieces set up like this... http://i68.tinypic.com/5kk9dl.jpg That is basicall...
by jondee86
Tue Apr 09, 2019 9:01 pm
Forum: TECH: Corolla AE86
Topic: USDM AE86 TACH
Replies: 13
Views: 518

Re: USDM AE86 TACH

Or perhaps one of these ?

Image

https://www.ebay.com/itm/TACH-TACHOMETE ... 2171581596

Cheers... jondee86
by jondee86
Mon Apr 01, 2019 3:34 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

Would the earth on the intake play a part if it wasn't clean? A lot of crusty crud or corrosion could cause a problem, but generally speaking, the action of bolting the ring terminal down would be sufficient to break through surface corrosion and make a decent contact. Clean is always better, but a...
by jondee86
Mon Apr 01, 2019 1:46 am
Forum: TECH: 4A-GE ENGINE
Topic: What's inside the 4AGE 16V TPS ??
Replies: 5
Views: 527

Re: What's inside the 4AGE 16V TPS ??

The transition of the engine from "idling" to "running" is controlled by the idle (IDL) switch on a 4-wire TPS. The switching point is when the wipers just come into contact with and bridge the two stubby tracks you can see in the above pics. The switch should be closed when the ...
by jondee86
Sat Mar 30, 2019 5:51 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

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 prob...
by jondee86
Fri Mar 29, 2019 2:39 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

Here is the injector wiring diagram with the colour codes shown... https://i.imgur.com/xJWoyLP.jpg It is usual for all the injector wires (power and ground) to run within the engine loom until they separate with the power wires going to the resistor pack and the ground wires continuing on to the ECU...
by jondee86
Thu Mar 28, 2019 1:10 am
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 195
Views: 40059

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

Yeah the R32 Skyline has a quad cam VK56 V8 and locally made TT Industries 5-speed sequential box. Normally aspirated engine and puts around 580hp to the ground. The other car is a series 6 RX7 with a 1UZFE and R154 5 speed box. Normally aspirated engine with cams and ITB's. I don't know what kind o...
by jondee86
Wed Mar 27, 2019 7:02 pm
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 195
Views: 40059

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

Stole this clip from someone elses video of the hillclimb event. https://youtu.be/MwbCPpCMKKE <<<<=== CLIP https://i.ytimg.com/vi/MwbCPpCMKKE/hqdefault.jpg?sqp=-oaymwEjCPYBEIoBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLAzAmJXm6LdiwJ9yO6kV-3JzAy1SA I like it because it shows how motorsport...
by jondee86
Mon Mar 25, 2019 2:29 am
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 195
Views: 40059

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

Last Sunday was the day for the annual running of the Alexandra Road Hillclimb on Mount Victoria, Wellington. The weather was damn near ideal with a bit of cloud to protect from the sun and a small breeze for cooling. I only have a single layer driving suit and I have to wear fire resistant underwea...
by jondee86
Sun Mar 17, 2019 1:28 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

Hey... congratulations on the new additions :) Your first job is helping your
lady take care of the twins... fixing the car can wait a little while !!

Cheers... jondee86
by jondee86
Fri Mar 15, 2019 3:02 am
Forum: TECH: Corolla AE86
Topic: Dirty dirty curse words. Water pump, and tvis woes.
Replies: 7
Views: 373

Re: Dirty dirty curse words. Water pump, and tvis woes.

The VSV should NOT hold pressure but should hold vacuum (either port). http://turbomr2.com/MR2/Reference/TVIS/TVIS-05.gif http://www.turbomr2.com/MR2/Reference/TVIS/TVIS-06.gif Port E (actuator) is never actually sealed. It is either open to atmosphere or connected to port F. Port E will only hold ...
by jondee86
Thu Mar 14, 2019 5:44 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

Re: 4AGZE Injectors Not Firing

There is only one possible explanation for this seemingly impossible result. And that is (and you did mention this) that a strand of frayed wire had made a bridge between the 12V pin and the ECU (zero volts) pin. If this happened then you would indeed measure 12V on both pins. When you have refreshe...
by jondee86
Thu Mar 14, 2019 2:14 pm
Forum: TECH: Corolla AE86
Topic: Dirty dirty curse words. Water pump, and tvis woes.
Replies: 7
Views: 373

Re: Dirty dirty curse words. Water pump, and tvis woes.

VSV works like this.... https://i.imgur.com/A5s41iY.jpg When the VSV is not energised the valve moves to the left and port F is closed trapping vacuum in the vacuum tank. The actuator port E is connected to atmosphere thru the filter. The TVIS is open. When the VSV is energised by the ECU the valve ...
by jondee86
Tue Mar 12, 2019 1:03 pm
Forum: TECH: Corolla AE86
Topic: Dirty dirty curse words. Water pump, and tvis woes.
Replies: 7
Views: 373

Re: Dirty dirty curse words. Water pump, and tvis woes.

From what I have seen the RWD pump has studs with nuts to hold the fan on and the FWD pump has threaded holes and small bolts. Check that all the vacuum hoses associated with the TVIS solenoid/servo/ reservoir can are good. A split or disconected hose will stop the TVIS operating. Cheers... jondee86
by jondee86
Sun Mar 10, 2019 10:16 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

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 jondee86
Tue Feb 26, 2019 12:48 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 52
Views: 2028

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 injec...

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