new engine starts but wont rev up (photo added)

[wewsupra]

Hi mate when i did my engine change to the vvti I had to have it tuned to get it to run right but I had auto ecu and had a new helteck ecu with maps and stuff

And my vvti tb is a fly by wire not dbw

Are u 100% sure it's a dbw not a fbw

Thanks Luke

 

engine and loom and ecu came from a 6 speed box man 1998 vvti

im runing 5 speed man gear box

 

with the info ive been given here ive passed this on to garage as im still at work till 7pm

i dnt no a lot about supra tech side at all

Are u 100% sure it's a dbw not a fbw

ill ask garage mate and get back to you

[neil]

Hi mate its 100% a fbw if that the case u need to wire a wire to the fuse box best person to tell u is jody t on hear mate he helped me with my con

Thanks luke

[wewsupra]

has anyone got jody t number please ill pm him as well

[ashbuster]

http://www.supraforums.com/forum/showthread.php?522377-FAQ-VVTi-2JZGTE-Facts-differences-and-conversion-information

mark wanted the diagrams i think mate

at the bottom

 

not very helpfull rich but i read this

 

"also make sure you are using jdm maf as the part nmumber is slightly diff then usdm maf. a couple of pins need to be moved for maf to read correctly or else cel and car will not rev past 3k"

Edited May 17, 2012 by ashbuster (see edit history)

[wewsupra]

start up and reving the cat is glowing red after few mins

overfueling ?

[ashbuster]

are you 100% sure you have the right maf for the engine rich?

[Wez]

also make sure you are using jdm maf as the part nmumber is slightly diff then usdm maf. a couple of pins need to be moved for maf to read correctly or else cel and car will not rev past 3k"

 

Sounds like your problem

[Oddball87]

I no its a long shot but when my mate did a engine swap he had the same thing, it would only rev to around 3/4k I had a look and one of the spark plugs weren't tighted properly, so I tighted them down and the car ran like a dream. Might be worth a check.

[Hellstrom]

Sounds like your problem

 

[wewsupra]

we phoned stave at toyota in oxford the aristo vvti maf is the same as twin turbo

thats the first thing we did this morning to make sure its all ok .

when im next at garage ill check the part number

 

cars left at garage now lucky we got my mates supra to go to rotterdam in

i shall update when back home

Edited May 17, 2012 by wewsupra (see edit history)

[ashbuster]

i dont mean that mate i mean if the engine is jap the maf has to be jap if not it has to be usdm , so it says on other forums

[trinitom]

Did you had the timing belt replaced?

[wewsupra]

i need to get another maf to check see if thats problem then

think niel from derby might come have a look maybe change maf (check)

Trintom no i have not changed belt .

hope to get it sorted this week

[trinitom]

just asking as i had a similar problem.

when i replaced my T belt, one of cam gears was one teeth out of place, the car started fine and all looked normal but couldn’t pass the 3ish K rpm too.

It was like a big misfire around 3k rpm.

[wewsupra]

right then read today that vvti mafs need specific kit induction kits

as said befor ive brought maf and cut it in to pipe work above my induction kit and sealed it in ill try get a photo soon as i go down garage

would they cause overfueling and not reving above 3k

ill get photo soon guys maybe tomora

[wewsupra]

heres a photo of the maf

 

does anyone think this is to high ?

all the photos im seeing on seach and google the maf is in a hard pipe

[Chris Wilson]

Ffs....

[wewsupra]

Ffs....

 

lol what that mean

[ashbuster]

for ....... sake

[Robzki]

and

[wewsupra]

for ....... sake

 

omg i no what it means in short tex i mean whats that mean in whats wrong

[SpeedyAndy]

Did you connect the Blue-Red pin on the lower fusebox connector? If not, you have to do so. You can locate it on here.

http://www.mkivsupra.net/vbb/showthread.php?232824-J-Spec-Engine-Harness-Connector-Details&p=3030539&viewfull=1#post3030539

You will need to rework the fusebox and put a 15A fuse for this wire if you haven't.

 

Was the TPS removed or moved? If yes, it has to be adapted again.

First of all you will need to put it back in position. To do so, you will need to take a multimeter and connect to VTA and GND somewhere on the car. Rotate the TPS till you get 0.6-0.7V on cold engine (0.65-0.75V on warm engine) reading. You will find the VTA pin on here http://www.mkivsupra.net/vbb/showthread.php?232824-J-Spec-Engine-Harness-Connector-Details&p=3277822&viewfull=1#post3277822

Then put the turn key to ON without starting the car and hit the acceleration pedal to the floor, keep it that way for 30s to a min. You will hear a buzzing sound. Your TPS will adapt to the ECU. Then turn the key to off and then start the car. Btw make sure to clean the throttle butterfly REALLY WELL before doing all this.

 

Also check the coils for oil/water and if they are connected properly. They are pretty tricky. Of course you have to check the condition of the spark plugs.

 

Check these and tell me if there is any result.

 

 

Hi, i have been popping up to the garage trying to help wewsupra out with this issue.

 

I do think it has some thing to do with the above from what emperor is saying.

 

There is currently 2 plugs by the fuse box in the engine bay - 2 x plugs from engine loom and 2 x the loom that going to the fuse box.

one of the plugs fits perfect in to each other. The one - from searching about has to be hard wired to the other one.

 

one connector has 5 wires - 2 x black and red / 1 x white / 1 x black / 1 x blue and red

other connector has 3 wires - 1x black and red / 1 x white / 1 x black.

 

This is how the plugs have been hard wired -

 

2 x black and red wires have been connected to the 1 black and red.

white to white

black to black.

red and blue - can any one share light on this as i've read some where you dont need it but then from what emperor has sed you do.

 

me personally it is either - maf sensor / the plugs which i have mentioned or the throttle position sensor from what emperor has sed - has it starts up fine revs up to 3k fine and just bottoms out after that.

[wewsupra]

photo

Edited May 24, 2012 by wewsupra (see edit history)

[EMPEROR]

As I wrote wewsupra on PM:

 

You HAVE TO wire the Blue-Red wire. Even if it's for the Traction it does power the Throttle Body Motor!!! As Traction and Acceleration uses one and same Throttle Butterfly! You HAVE TO wire this to +12V via 15A fuse.

[SpeedyAndy]

As I wrote wewsupra on PM:

 

You HAVE TO wire the Blue-Red wire. Even if it's for the Traction it does power the Throttle Body Motor!!! As Traction and Acceleration uses one and same Throttle Butterfly! You HAVE TO wire this to +12V via 15A fuse.

 

Thanks emperor.... i will try this either friday night or saturday morning, and im hoping this will make it run over 3k revs correctly.

 

As for the maf sensor - is it to high or in the incorrect place ? where would you place it ?