Ae112R timing /performance issues

[Walgett]

HI, been having issues with the wife's Ae112 for some time, with the dealers teling us nothing is wrong.
She was driving it home one day , suddenly lost power and exhaust note changed. When she got home , sh etold me, I took it for a test drive and after driving 30 metress down the road couls feel something wrong.

It wa stsill under warranty, and was taken to several dealers who simply plugged in the scan tool , said there are no fault codes so nothing wrong ( one actually adjuste dthe kickdown to th epoint where just squeezing the throttle at 80km/hr would cause it to go into 2nd gear).
exhaust wa schecked by 3rd party nad supposedly muffelrs and Cat ok.

The thing was so bad I was scared driving it across intersections.
I ended up checking the timing myself and found initial advance was only 5 degrees instead of 10. set it to 10 degrees and got a bit of top end back.
It still won't do over 120Km/h on a cold night on the M7, the exhaust has turned blus e to beyond the first muffler now. fuel consuption has been uo 20% since the issue started.

during another diagnosis attempt recently, I noticed when I put the jumper between E1 and TE1 , the timing was at the correct at 10 degtrees BTDC, however after removing the jumper, instead of advancing an additional 3-12 degress as per the manual I had, it retarded to between 5 degrees BTDC to about 5 degrees ATDC.
I have tried to connect to the OBD2 port with Techstream ( works a treat on 2003 Camry V6), tried connecting
CarTester800 ( english edition) to TDCL port under the bonnent but can't read the ECU. Techstream does have the Autsralian AE112 in its configuration, but I have no idea how to connect.
I lastly tried to read fault codes today, and I though they were 14,24,31,99 if I was reading them correctly. No engine check light comes on during normal driving.
Obviously something is causing the ECU to retard the spark. Oxygen sensor waveform and response look ok according to Toyota service bulletins.

Any one encountered these symptoms before or have any suggestions. Any idea on connecting Techstream or similar would also help?

Thanks
Wayne.
Btw , 2000 Corolla conquest, auto, issue started at 60000 km, now have 145000

[litldv8]

jumped a tooth on the timing belt?

[Walgett]

jumped a tooth on the timing belt?

One of the first things I checked, it all looks to lighn up correctly, but it will be checked again soon< i believe we are due to replace the timing belt

[CraigD]

Mate where abouts in NSW are you.If you want just send me a pm.

[Walgett]

Mate where abouts in NSW are you.If you want just send me a pm.

In Blackett

[Walgett]

a little more info after running CarTEster today( sorted the connection issues)
the following readings were taken with the car in Park, AC off
Injection time: 3.000mS
Ignition timing angle: 7.1 degrees
IAC valve Duty cycle (% from 255): 43.5%
Engine speed : 1100rpm
MAP,kPa 30.6kPa
Coolant Temperature(direct) 82.1 deg C
throttle position,Degree 2.5 deg
Target Air/Fuel 2.4V
Warming Enrichment No
Knock Sensor (detonation) No
Feedback on
Additional enrichment Off
Starter Off
Idle Switch Closed
A/C Off
Park/Neutral On
O2 Sensor Rich
Approxate l/h 1.45
Approx fuel rate l/100K 999.0

I will do a longer drive test once i sort out the problem with exporting the data to Excel, or I can send the CarTester software to anyone who wants it..........

[CraigD]

Hey Wayne if you can make it up to Castle Hill i will be more than happy to look at it for you.

Cheers Craig

[Walgett]

Thanks for the offer Craig, I will see what I can work out, when sits you?
I am in Castle Hill most Sunday mornings for the young fellas soccer training. Saturdays are hectic, but I could possibly work something out.
Just let me know.
IF you want I will bring along the Techstream and CarTester software as well

[allencr]

What's the compression, wet&dry?

[Walgett]

What's the compression, wet&dry?

Sorry, don't have the current figures, but a couple of years after the issue
occurred is was checked by two different Toyota Dealers and an Independant
organisation, and was well within spec.
Don't forget the problem occurred in an engine with approximately 35000 miles ,
meticusly maintened and only driven by a lady 99% of the time . Are you thinking
rings or burnt valves? There is no excessive oil consumption, no abnormal smoke,
Spark Plugs always show a good colour.

[CraigD]

Thanks for the offer Craig, I will see what I can work out, when sits you?
I am in Castle Hill most Sunday mornings for the young fellas soccer training. Saturdays are hectic, but I could possibly work something out.
Just let me know.
IF you want I will bring along the Techstream and CarTester software as well

Hey mate
Pretty much after this weekend i'm free so let me know when you want to meet up and i'll have a look at it. I might also be able to come out there to you but can only do it on the weekends.

Cheers Craig