engine warning light AE101 4age 20v

[headshotnz]

Hey guys,

Im absolutly stumped, my engine warning light is on,

My car is stuck in limp home mode,

Iv replaced the TPS, the water temp sensor and the AFM as had spares.

I have put it in diag mode but the engine warning light hasn't blinked at all.

From what i read it should blink twice to report no error's. But it doesn't do this either.

Is it a faulty ECU?

When the car is really cold, then engine warning light will be on, it will be quite hard to start (As if its a carbd)

Then after about 5 seconds of splutteryniss it will be fine, until operating temperature then be back in limp home mode with the engine light back on.

Any help would be great!

Cheers every one.

[Alex B]

Stuffed ECU very common in AE101, take it out, take the lid off and see if the caps are bulging/stuffed.

[matt dunn]

Yeah I agree, faulty ECU, and common problem.

I used to have some for sale but have run out.

I may be able to repair it for you if you get stuck.

Matt

[Adamal]

Worst case I've seen on one was the whole PCB was corroded!

[headshotnz]

Cheers for the fast reply, have got the ecu, have had a quick look, but i have an untrained eye, am getting my mates dad to have a look tonight when he gets home, will report back once i find out.

lol

[Adamal]

This should give you an idea of how to recognise a popped or pregnant capacitor:



And see the 2 at the bottom? Thats how they should look.

[headshotnz]

This should give you an idea of how to recognise a popped or pregnant capacitor:



And see the 2 at the bottom? Thats how they should look.

Thanks alot mate, old motherboard much? whats it for? old p3 or celeron or something?

Will let you guy's know in about an hour all take some photos while im at it.

[matt dunn]

Never noticed that before on any of the one's I've seen.

Another way is open the ECU up and smell it?
Smells like fish = Faulty.

And that's serious too.

Not all have visable signs until you remove the capacitor to check the board.

[AceSniper]

yeah most iv seen the top of the cap looks ok, but down around the base of the cap there can be corrosion visible

[headshotnz]

Theres some pictures guys, some may be better then others.

So i uploaded all of them.
















On a update, i was holding it at 1.5k and it sounds lumpy cam, burns lots and lots and lots of fuel, my poor wallet is taking a hit, iv spent about $70 bucks in the last 5 days

Also, it was flicking on and off. it doesnt normally do this. strange.

[matt dunn]

put another ECU in it.

[headshotnz]

put another ECU in it.

Thats easy to say, but i dont have another one, well i have 2 auto ones, but they dont work with the manual loom. other wise i have to buy one...

Got quoted $125 from the wreckers.

[levinguy]

i dont know if the plugs will plug into the ecu, but if they do the ecu should work if you bridge the starter inhibitor switch (makes the car only start when in park)

[matt dunn]

i dont know if the plugs will plug into the ecu, but if they do the ecu should work if you bridge the starter inhibitor switch (makes the car only start when in park)

no, way to different to even plug in on them.

[Alex B]

put another ECU in it.

Thats easy to say, but i dont have another one, well i have 2 auto ones, but they dont work with the manual loom. other wise i have to buy one...

Got quoted $125 from the wreckers.

Thats cheap. Few years ago mate got quoted one for $500.

[rollaholic]

will be $200+ to get it repaired without mates rates

[headshotnz]

Got a quote for $150 so will be repaired tomoro

[Crampy]

Where are you?
I've got one you can try out to confirm if it is the ECU.

[1I1]

He's in wellington

[AceSniper]

wow @ prices
the caps are worth like 4bux :/