Lauren's AE86. Pics on page 13.

[Lauren]

Craig, Dale, per chance, I've found an AE86 with Advans on:





Sorry, but I'm still not convinced.

[Ryan S]

read through most of this from the start, did you get the running problems sorted?? what was the cause/fix???? oh, get those advans right on!!! they look well mean!!!

[Dale_V]

Craig, Dale, per chance, I've found an AE86 with Advans on:





Sorry, but I'm still not convinced.

theyre not the ones lauren.....

although they do look quite good imo, but the style I posted would do it 100%

[Lauren]

read through most of this from the start, did you get the running problems sorted?? what was the cause/fix???? oh, get those advans right on!!! they look well mean!!!

Yes and no with the flatspot. We reset the modified ECU and that cured it lovely, but it would come back after about a week. So, we got a stock ECU and put that on. That cured it, but I can't help but feel that the car feels a little weaker at the top end with the stock ECU.

As we have no way of working out what the modified ECU is, we'll probably look at getting a piggy back ECU for the future and get it mapped. Reckon we may well stick the modded ECU back on for an impending trackday, but have to be careful as no rev limiter(!).

[Lauren]

Looks like I'm going to have to save my pennies and import the wheels I want via Japan.

I can't help but feel that the car must have Japanese wheels on it of the time etc, for it to look right.

I think Work Equip 03's are the ones (probably about £1.5K to buy though):

[craig]

Craig, Dale, per chance, I've found an AE86 with Advans on:





Sorry, but I'm still not convinced.

Wrong Advans.

[craig]

Craig, Dale, per chance, I've found an AE86 with Advans on:

Image Replaced With URL For Quote http://i741.photobucket.com/albums/xx58 ... ueno13.jpg

Image Replaced With URL For Quote http://i741.photobucket.com/albums/xx58 ... ueno11.jpg

Sorry, but I'm still not convinced.

theyre not the ones lauren.....

although they do look quite good imo, but the style I posted would do it 100%

Yeah it would rock, but with Lauren all Advans in that style are collectively grouped as "3 spokes" mate and I feel you're flogging a dead horse

[Dale_V]

and i liked this pic, so thought id add it

[Lauren]

Yeah it would rock, but with Lauren all Advans in that style are collectively grouped as "3 spokes" mate and I feel you're flogging a dead horse

Sorry, prefer the Work Equips by a long way.

[craig]

each to their own. I like the equips, but the Advans have a classic JDM look to them.

[craig]

and i liked this pic, so thought id add it

LOL

[Ryan S]

read through most of this from the start, did you get the running problems sorted?? what was the cause/fix???? oh, get those advans right on!!! they look well mean!!!

Yes and no with the flatspot. We reset the modified ECU and that cured it lovely, but it would come back after about a week. So, we got a stock ECU and put that on. That cured it, but I can't help but feel that the car feels a little weaker at the top end with the stock ECU.

As we have no way of working out what the modified ECU is, we'll probably look at getting a piggy back ECU for the future and get it mapped. Reckon we may well stick the modded ECU back on for an impending trackday, but have to be careful as no rev limiter(!).

at least you know exactly what the problem is

[Lauren]

Yeah, I think it's because the doctored ECU keeps generating error codes that maybe it defaults to some other map and the misfire comes back.

The modded ECU has a higher or no rev limit (revs past 8000rpm which is then off the scale) and no doubt is de-restricted though it's a bit of an academic task in an AE86 as it'd take an age to get over 120, so I haven't bothered trying.

The engine does feels stronger with the modded ECU though, I guess as the power band for the cams is up to 8300rpm, so it does feel a little restricted on the stock ECU with the 7600rpm rev limit, but then again I don't want to blow up my engine!

[JMR_AW11]

If you get someone to desolder and read the standard EPROM chip contents from your modded ECU (fairly trivial task) and email me the binary file I'll tell you if it has a rev limiter and if it can be adjusted with a new binary file.

I'm surprised that the EPROM chip is hard soldered into the ECU. This implies that this board is a fit and forget solution (apart from fine tuning via the DIP switches)

It could be that the DIP switches allow different rev limiter options as well as different mapping options.

[Lauren]

For those that have R12 systems, it is possible to convert to R134A which is not only legal, but about £50 a refill and you can have it done anywhere.

In order to do the conversion a special oil is used. The aircon place, vacuumed the system for a couple of hours to remove all the old oil and refigerant.

Then the new oil which is compatible with R12 systems (The AC guy said that there are conversion kits for Japanese cars available) is added and then the system was refilled and pressure tested with R134A.

Following that the system was tested for leaks. Old R12 style refill valves were replaced with appropriate valves for R134A. Cost was £130 + VAT.




The aircon is now lovely and cold, massive improvement. Interestingly the AC guy reckoned that imported cars from Japan, California (ie hot places) tend to have much better quality systems than you find in European cars, he reckoned because of the necessity of it over there.

[Lauren]

If you get someone to desolder and read the standard EPROM chip contents from your modded ECU (fairly trivial task) and email me the binary file I'll tell you if it has a rev limiter and if it can be adjusted with a new binary file.

I'm surprised that the EPROM chip is hard soldered into the ECU. This implies that this board is a fit and forget solution (apart from fine tuning via the DIP switches)

It could be that the DIP switches allow different rev limiter options as well as different mapping options.

Interesting Jeremy, but not convinced it's worth the effort just to find out if there is a rev limiter really. Though there are jumpers on there, I reckon we have next to no chance of really finding out what each one does, though stuff like oxy sensor on/off, rev limit etc, is probably what they are.

Think I'm only likely to use the modded ECU on trackdays and will obviously have to watch not to over rev it. Mark has some shift lights installed for this.

[Dale_V]

Interestingly the AC guy reckoned that imported cars from Japan, California (ie hot places) tend to have much better quality systems than you find in European cars, he reckoned because of the necessity of it over there.

They definately do, all the UK cars I've been in with A/C have been lame compared to cars i've been in, while in America

[craig]

Interestingly the AC guy reckoned that imported cars from Japan, California (ie hot places) tend to have much better quality systems than you find in European cars, he reckoned because of the necessity of it over there.

They definately do, all the UK cars I've been in with A/C have been lame compared to cars i've been in, while in America

+1.

[JMR_AW11]

If you get someone to desolder and read the standard EPROM chip contents from your modded ECU (fairly trivial task) and email me the binary file I'll tell you if it has a rev limiter and if it can be adjusted with a new binary file.

I'm surprised that the EPROM chip is hard soldered into the ECU. This implies that this board is a fit and forget solution (apart from fine tuning via the DIP switches)

It could be that the DIP switches allow different rev limiter options as well as different mapping options.

Interesting Jeremy, but not convinced it's worth the effort just to find out if there is a rev limiter really. Though there are jumpers on there, I reckon we have next to no chance of really finding out what each one does, though stuff like oxy sensor on/off, rev limit etc, is probably what they are.

Think I'm only likely to use the modded ECU on trackdays and will obviously have to watch not to over rev it. Mark has some shift lights installed for this.

Well it's an interesting car and (to me) an interesting ECU, Lauren

Assuming the ROM code is still mostly original Denso code I could probably tell from the binary file what the switches do.

My guess is that they switch in different ROM images because the 27C256 EPROM is capable of holding up to 8 versions of the factory ROM.

If you ever dump out the EPROM and email it to me I could probably work out 90% of the DIP switch functions within an hour or so of tracing each ROM image but I can't guarantee this.

[shish]

Well it's an interesting car and (to me) an interesting ECU, Lauren

Assuming the ROM code is still mostly original Denso code I could probably tell from the binary file what the switches do.

My guess is that they switch in different ROM images because the 27C256 EPROM is capable of holding up to 8 versions of the factory ROM.

If you ever dump out the EPROM and email it to me I could probably work out 90% of the DIP switch functions within an hour or so of tracing each ROM image but I can't guarantee this.

i agree that it does seem to be a drop-in board, at a guess it would be a drop-in when running 264 cams as thats really the only mod that would require remapping to that extent.

Would also be nice to find out why after a week of driving we get this awful flat spot that gets worse until the ecu is reset.

The modded ecu is currently in the shed, we're preferring a stock ecu at the moment because it has a rev limit and doesn't have the flat-spot issue.

If you wanted to have a look at it your more than welcome, i could post it to you, but we would need it back in the same (working) condition. Just give us a shout if you fancy it.