Generally speaking, letting an engine idle to warm up is not a good idea. Better to get the engine started and start driving more or less straight away... unless the car is heavily iced up and you need some heat to help clear the windows. Obviously, when starting out with a cold engine you don't bea...

Nominal fuel pressure at idle, hose off 4A-GE (AE101, AE111)... 235-275 kPa Nominal fuel pressure at idle, hose on 4A-GE (AE101, AE111)...196 kPa Your pressure at idle with hose off is 275 kPa Your manifold vacuum at idle is (-)63 kPa Your pressure at idle, hose on should be 275-63=212 kPa But you ...

Nexus09 wrote:We went to start it up and it fires and turns over but then it wont continue to run.

Check that you have 12V at the injectors when the ignition switch is ON.

Cheers... jondee86

DIY / GUIDE - These are topics that help you to fix stuff yourself TECHNICAL - These are topics that explain how things work REFERENCE - Reference data, specifications and manuals DISCUSSION - People comparing notes, ideas and opinions DISCLAIMER : The following information is provided for your ent...

Could be a grounding issue. Did you double check that you have the
ECU grounds bolted down ? Those are the 3 or 4 brown wires that are
fixed to a single brass ring connector, and bolt down under the injector
harness at the rear of the head. Easy one to miss.

Cheers... jondee86

Hey... sounds like you are on to it now :) AFR's can be on the rich side when the engine first starts, as the ECU will put extra fuel in when the engine is cold. But anywhere in the 14-15-16 range on a fully warmed engine at idle is fine. Later when you get some load on the engine, they should drop ...

When the engine is running, can you rev it up normally with the throttle ? And if you rev it up, does it run smoothly or cough and fart ? If you raise the revs to (say) 3000 and hold there, what is the AFR ? Have you ever had the engine up to normal operating temperature ? The ignition advance jumps...

The 4AGE throttlebody has a heap of variations according to the market for which the car was built. Offhand I don't know what the letters stand for, but these are the ports you can expect to find in most of the 16V 4AGE variants... 1. One large port from inside the front of the TB to the back of the...

Jondee Do you have bigger cams? 272/268 running 100/100 lobe centres. MAP reading tapped off all four manifold runners with small accummulator and pulsation damper in the MAP sensor line. Reading is rock steady and fast responding. Running the ST ISCV feeding separately into each intake runner. I c...

What I did was buy an old 100 dia industrial vacuum gauge, and adapt the fitting to accept the same size hose as connects to the MAP sensor. Then I went to a garden centre and bought a small 3-way barbed "Tee" connector that fitted the hose. These fittings are usually found on garden irrig...

The idle air by-pass screw plus one of the little tubes on top of the throttlebody should pass all the air you need for idle. You may not even need the little tube if you open the idle air screw up. The engine requires surprisingly little air to idle, as you discovered when you opened up the brake b...

Start by checking the 7.5 Amp "Gauge" fuse in the driver's side kick panel.

Cheers... jondee86

MAP sensored AE92 smallport had this airbox... http://thumbs3.ebaystatic.com/d/l225/m/mxAJRwroZSFxL2QqgJeMy-g.jpg The little blue plug belongs to a PWM controlled idleup valve embedded in the side of the airbox. The valve lets air into the intake manifold via the skinny tube you see heading off to t...

All good. Yusss... what I am trying to emulate is the fat midrange torque that you get with a large engine, but do it with a small engine and a turbo. I'm kind of over peak torque at 7000rpm and having to change down for every hill, even if its not much of a slope. I'm going to finish off the N/A bu...

AFAIK the 20V uses a standard 1:1 rate vacuum compensated FPR to maintain a constant pressure differential between the fuel rail and the inlet manifold. That is to say, with the engine off and the pump running, the rail pressure should be in the range of 34-40 psig. With the vacuum compensation hose...

Excellent :) I have been having a look at some of the on-line calculators, and can see that there are quite a number of parameters that need to be decided before you get a sensible answer. I shall continue to study :geek: Oh, and I didn't mean to run the turbo without any controls. I would be lookin...

So, while I am doing a bit of learning up on turbo selection, I'd like to understand if it is possible to size a turbo to an engine so that it becomes "self-limiting" at the top end. By this I mean, instead of relying on boost controllers and blowoff valves to stop runaway boost at redline...

Batteries are made in a couple of different heights. Factory batteries were kind of tall and thin, and they often get replaced by a shorter but wider battery, which means the lugs are not at the right spacing, and the height will be wrong. You probably have to get a different size of battery, or giv...

Good stuff !! I did a bit of research and it starts to look like the Garrett GT2554R might be a good match for what I am after to start with. It also has the ability to go a bit higher than 8-10psi if I get enthusiastic :) One of the reasons I'm not chasing big power is that I want to be able to use...

Sticking this in here as it is kind of relevant. If the OP would prefer this to be in a separate thread, just say so, and I will shift it. I have been considering a few alternatives to get a bit more torque from my smallport N/A 4AGE, and got to wondering about these CX Racing T3 Top Mount kits... h...

2. From the picture you posted earlier of your coolant temp sensor, it looks like its broken. If it truly is broken, I would definitely replace that. Yup... sure looks broken, and being broken it won't be sending any messages to the ECU. So I'd be inclined to go with the Yoshi theory on this one :D...

Awesome pics... super clean car... congratulations JyuRoku !!!

Cheers... jondee86

Guy named Simon in Auckland, New Zealand apparently....

Cheers... jondee86

The straight up aerial was popular in the 70's ;) This is how the factory aerial on my car looks... http://i984.photobucket.com/albums/ae328/jondee1/euroaerial_zps10c8ed93.jpg It extends a bit further than shown in the pic, and the cool part is that you can put your arm out the window (RHD) while dr...

Interesting :) On my car (which is a Euro spec Levin) the aerial is mounted more on top of the guard, and angled back at about the same angle as the front screen. Some interesting stuff here... http://forums.club4ag.com/zerothread?id=97310 Am I correct in thinking that the OEM USDM aerial was perman...

OK... I think maybe the problem is just that your cold idle is a bit on the high side. There is an idle air bypass screw down the tube on the side of the throttlebody. You can see the top of the tube in the pic under the word "here". Get in there with a screwdriver, and turn the screw cloc...

Least I can do for a guy who uses the word "ramifications" in the
proper context

Cheers... jondee86

Pretty sure it will be a manual antenna... should just telescope up and down when you push or pull on it. But if they have been out in the weather for a while without being moved, they can get stuck pretty good. Run some WD40 or similar corrosion penetrating fluid over the joints, and let it do its ...

This here is your basic 4AGE throttlebody with thermostatic idle-up valve attached to the underside... http://members.shaw.ca/migsman/AE86info/PCVInfo/MigsTBPCVHole.jpg The valve is the part with all the metal tubes. The two tubes pointing down in front of the guys palm, are connected to the engine ...

#7 WIRING - COOLING FAN - More detail The fan control wiring is common to a lot of vehicles in the 80's. It requires a reverse acting temperature switch (opens on temp rise) and a normally closed relay that is energised to stay open by the ECU. When the engine gets hot the switch opens and interrup...