2F-E in Africa - Lots of questions (1 Viewer)

[Yspen]

2F-E in Africa - Aftermarket ECU

The 3F-E was never released in Africa ( intially the 1FZ was also here in carb version ) .

So following my 2F rebuild ( https://forum.ih8mud.com/60-series-wagons/399712-another-2f-rebuild.html ) I decided to convert to Efi.
Most of the part got imported but due to the difficulty in obtaining parts the decision was made to go with aftermarket ECU .

Here is the intake manifold and a local header system : ( I had to make sure it would fit as it was designed
for 3F carbed engine )

Now I need to rid the manifold of all the unnecessary vacuum pipes .
With the aftermarket ecu we only need :
Lambda sensor , MAP sensor , TPS , ICV , water temp sensor , air temp sensor .
EGR is already removed and we do not need the cold start injector ( the aftermarket ecu takes care of that )

I studied the threads and service manual but still unsure of a few things :
First question :
in the following picture ( taken from Pappy's rebuild report ) where does the pipe go that exits where the arrow points ?

MORE QUESTIONS TO FOLLOW

 

[inkpot]

The one in the second pic looks like a fuel pressure control or bypass to send excess back to tank. John

 

[Yspen]

The arrows are pointing to the same thing . It carries air .
Second picture the manifold is lying on its side

 

[inkpot]

Yea, that's what I meant, was a vacuum line to run the regulator.

 

[Yspen]

It connects to a steel line that crosses over to the other side of the manifold and does not comnect to the regulator
The thin rubber line does connect to the regulator but I need to know what the plug behind that leads to. On the first picture there is no pipe connected .

 

[Benjaman]

Pretty sure most of those hoses on my 3fe go to the fender, where a cluster of vacuum switches sit.

The 3F-E was never released in Africa ( intially the 1FZ was also here in carb version ) .

So following my 2F rebuild ( https://forum.ih8mud.com/60-series-wagons/399712-another-2f-rebuild.html ) I decided to convert to Efi.
Most of the part got imported but due to the difficulty in obtaining parts the decision was made to go with aftermarket ECU .

Here is the intake manifold and a local header system : ( I had to make sure it would fit as it was designed
for 3F carbed engine )

Now I need to rid the manifold of all the unnecessary vacuum pipes .
With the aftermarket ecu we only need :
Lambda sensor , MAP sensor , TPS , ICV , water temp sensor , air temp sensor .
EGR is already removed and we do not need the cold start injector ( the aftermarket ecu takes care of that )

I studied the threads and service manual but still unsure of a few things :
First question :
in the following picture ( taken from Pappy's rebuild report ) where does the pipe go that exits where the arrow points ?

MORE QUESTIONS TO FOLLOW

 

[Yspen]

So if it is just another vacuum pipe I can use it to supply vacuum to my clutch booster or brake booster

 

[Yspen]

Found this :

it looks like it goes to the VCV

 

[Yspen]

Found cheap Surge tank on e-bay :

 

[Yspen]

I was advised to fit the Bosch 6 Bar fuel pump .
When I asked if that pressure is not too high the response was that it is better to fit a higher pressure pump and then make the regulator bleed off the excess pressure .

Is that the correct line to follow ?

 

[Yspen]

Can someone tell me what the thread is of the bolts I need to block off the AI ports ( those ports above the exhaust outlet in the head )

 

[waexplorer]

Use 1/4" pipe plugs

 

[RockDoc]

There is a toyota part. 90340-14001 Also referenced in Spook's desmog thread. https://forum.ih8mud.com/60-series-wagons/47092-3f-e-desmog-guide-up.html

 

[Yspen]

Finally this project is on track again .

Found a specialist in Johannesburg that put together a ECU with harness for me . The Aftermarket ECU needs less sensors ( TPS , MAP , O2, air temp and water temp ) and thus much easier and cheaper to assemble than OEM . The ECU arrived preprogrammed with a map for the straight six - so hopefully it will be plug and play . Will schedule a Dyno tuning once it can be driven .

I have two fuel pumps and need to decide which one to fit . One is a walbro 4 bar and the other a Bosch 6 Bar . Both should work as the FPR should bring pressure down to OEM specs . Advice on which one will be better ? ( maybe the one that is quieter ). The surge tank will be fed from the OE mechanical pump ( like Matt did in his turbo-2Fe )

The headers has been ceramic coated ( inside and outside ) to keep engine bay temp down .

Will be using the top part of the 2F thermostat housing and the lower part of the 3F-E thermostat housing . That way we van use the 3F-E water temp sensor and the 2F water temp sender for temp guage .

It is a right hand drive vehicle and the throttle cable is already in the correct position .

Will update with pics when we get going

Made my own AI plugs by trimming / shaping a bolt to fit and cutting a groove at the base

 

[Yspen]

The old 3F ( carbed ) head that was on the 2F replaced with 3F-E head . Note the ceramic coated branches in place .

The old and the new . Carb vs Efi

The management system
Thanks to Mark Watson in Johannesburg for putting together the harness - very professionally done . Just plug and play and at a good price ( cost me $1000 for ecu , complete harness assembled and ecu mapped for the car - software supplied for further dyno tuning. ) The ECU is a megasquirt based product made locally .

The complete harness as supplied by Mark

Now where to cut the hole in the firewall ? ( note it is right hand drive - so hole gets placed in passenger side )
Looks like the best place to leace the ECU is behind the cover to the side

The O2 sensor . With the header setup 6-2-1, that is the nearest to the engine we could place it .

Looks like it is all coming together nicely .

 

[Yspen]

Will this kit supply all the bits needed to remove , service and replace the injectors . ( The agents cannot supply it here as the engine was never sold in our market )

http://www.ebay.com.au/itm/FUEL-INJ...LANDCRUISER-80-3FE-4-RUNNER-3VZ-/220970767976

The lower grommet looks very old and once I remove the injectors I doubt it will be reusable. ( can you check for me if that grommet is part of the kit )

EDIT : Found the seals at NAPA : http://www.northernautoparts.com/ProductModelDetail.cfm?InventoryId=102427 . They have always been very helpful and ship to SA . Would be great if someone that knows the 3f-e can give me a thumbs up before I order and ship 10 000 miles

 

[Yspen]

The 3VZ-E used the same injectors as the 3F-E .
Fortunately the 3VZ-E was brought to South Africa in the Camry - so I managed to get the injectors seal from the agents .

 

[Yspen]

ECU and harness fitment

The master mechanic in Cape Town at work :
I was told a while ago that if you need to cut a hole in your car to spend more time preparing for the cut than time spent in the cutting itself . Well it took about 2 days to figure out where to cut and a few hours to do the cut .
The metal in the firewall was about 2mm think - they built them solid in the 1980's .

Finished hole - neat and some rustproofing paint added

From the engine bay side - the grommet and aftermarket harness looks like OEM equipment . Awesome job .

 

[RockDoc]

Looks like it is going to be quite the unit. When do you expect to have it all buttoned up and back on the road? Do you need to do a fair bit of dyno tuning to get the ECU dialed in?

 

[Yspen]

Hi Rockdoc - you inspired me to get this done.
The conversion is being held up due to me finding threads on MUD that calls for the injectors to be checked . So currently the injectors is sent away and I had to wait for new injector seals.
The 3f-e head is on and valve clearance set .(cold setting)
If all goes well the car will be running end next week. The ecu was loaded with a generic map for toyota straight six. But Dynotunig will be done for finetuning and getting the most out of the engine . Results will be posted and compared to the carb setup.

I decided to swop the semifloater rear diff for full floater and fit ARB locker while the car is in the workshop . So the dynotuning may only be done by end of the month.