Jump to content
altezzaclub

The Girl's Ke70

Recommended Posts

Well, another couple of trips up and back, maybe its three now... 1200Km each trip. No problems at all anyway.

I fitted a new Ebay fuel sender unit as my modified red light didn't seem to work. or maybe it was too dim..  Anyway, the new red light came on at 1/4 full, so I bent the arm to make empty, 'Empty'.

...and naturally now when it is full it only shows half!  So there is a bit of work to do with those Ebay units to make them work!

Today the light came on about 20km from home, and when I filled the tank it took 40L, so there was more than 10L left when the light came on.

New fuel sender.jpg

Share this post


Link to post
Share on other sites
Members dont see this ad

Well, the new sender unit just doesn't want to show how much fuel is in the tank!

The red light came on just North of Wellington yesterday on the way home-   It was still a long way above 'empty' with the red light on, but I added 12L just in case...

291432544_NewfuelsenderMT.thumb.jpg.5e2d9ff2a64f0e78b66ed6acf50adc1c.jpg

and when I filled it today it goes up this far-

1118517926_Newfuelsenderfull.jpg.079da3fb61feea0684045f788910271d.jpg

So they're no good!   At least I've got the red light, maybe I'll add that to the old stock sender unit.

It did 686km  running around between the farms and then driving 550km back, all at 6.9L/100km. you can't beat that in an old Corolla having fun..

Share this post


Link to post
Share on other sites

OMG! Time flies!   I've made one trip up to the farm in the KE70, and one in the Altezza. Then back home since Easter or so. With 4 cars and three drivers the KE70 stays in the garage with the Altezza in the driveway in front of it, so I drive the Altezza. Naturally, when I go to drive the Corolla.. the battery is flat!    Charge it up and take it downtown, and it suddenly cuts out and dies! The guy behind at the lights helps push it off the road, and of course it fires up without me doing anything. Drive for another Km and it dies again!  Wait a minute and it fires up!

I figure fuel starvation as there are no error codes and so I have re-fit the mixture display, which shows it leaning out as it dies.  I look inside the tank in case the lift pump has dropped off again, but its fine.  I take the fuel rail return line off an run it through the car with some clear hose. It never empties.

1515380229_Beastfuelhose.jpg.16225366c402e1d1370020ef470a45ba.jpg

I start thinking the main pump may be dying from a bad relay in the COR setup, so put a wire from the battery direct to the pump, tucked away under the air filter...

and that's when I find one of the wires on the pump is not firmly on the terminal at all! I assume it was moving off under some acceleration or other, the motor dies and it falls back into place!

Having put it on firmly and seeing it do two days of running around, I hope that was the problem and the fix.  I've sold the Altezza and its one car each now!

Share this post


Link to post
Share on other sites

Well, over 6months later, that was the solution & no further problems.  Rego came around last week & the usual garage I go to has been handed down to one of the sons, and he pinged me for tyres and exhaust leak.  Fair enough, I could have squeezed 6months out of those tyres before the wear strips, but meh..  Worse was, it didn't idle for him so he put a comment on the sheet & needs it to idle in 12months. He was really keen on a dyno garage in Dubbo, but that's a 300km round trip from here and I dunno how many hundreds of dollars on the machine.  He said it would be a thousand dollars well spent..  Nearly killed me!

The difference comes in that he thinks the dyno guy can alter the ECU to make it idle with its race cams, while I understand that you can't alter anything in the ECU. All there is to play with is ignition timing & idle speed, and as I have played with, the waxstat cold idle adjustment. It  idles a lot of the time, but then drops a couple of hundred rpm, then another couple, then dies..  Doesn't worry me, I'm used to it, I heel & toe naturally.  I reckon the jerky over-run is also cam related, there is just a very poor idle vacuum for the MAP to work off.

 

Any ideas??

Things improved when I put the mixture display back in and hooked it onto the oxy sensor wire. I'd taken it out to calibrate a mate's system and  ...found I never re-connected the oxy sensor to the ECU as I planned on putting the mixture display back on that afternoon, and didn't!  Its better now it doesn't have to run on the ECU map in open loop, and of course when I took it back to the garage he talked about it but didn't try it!

Tyres are meh...  Falkens on the front, Bridgestones on the back, and at least the Bridgestone's soft sidewalls give it that lovely sharp tail-out turn in.  I already know putting them the other way around gives gentle endless understeer. There are just no good 13" compounds made any more.

Share this post


Link to post
Share on other sites

Had a very similar intermittent fault with my initial 4AGE conversion in the AE86.  Was fine for a long time, then would intermittently stop.  No start, no start, then eventually restart.  Sometimes the next day.  Turned out a soldered joint at the EFI relay had popped off the junction box so was making intermittent contact.  Very frustrating.

Also had a similar issue with idle.  The fix came after I installed the idle up sensor.  Called the A/C idle up sensor but also increases idle speed with other increased electrical load such as lights etc.  For some years I sat at traffic lights in Melbourne traffic with foot on accelerator.  It did become somewhat tiresome.  That was with 268 degree duration cams where the maximum the ecu could supposedly cope with was 270.  That was according to Wade's who did some development work with Toyota on the bigport.  Initially I had a factory 4AG engine loom spliced into the 4AC charge/lights and dash loom.  Then I installed factory 4AGE AE86 charge/light and dash looms as well.  I have never had issue with over run

Edited by parrot

Share this post


Link to post
Share on other sites

Thanks parrot-  Yes, intermittent faults are the absolute worst!   That idle up sensor had me flummoxed when I fitted the motor until I figured out what it was. I ran it for sometime with a dash switch, although that has been re-purposed for an electric fan over-ride since. I do remember even the idle up couldn't keep it running in its determined-to-die spiral sometimes. I might hook it back up just to see...

These are the 270deg cams apparently, it can't pull the skin off rice pudding under 2000rpm. I was intending to swap the head for the rally car's stock setup eventually,  just swapping cams means doing tappet buckets as well and its no longer a 5minute job.  Its interesting you didn't have the jerky over-run, I'll keep searching....

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...