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New girl with old car


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Hi

My name is Halina. I have owned a 1986 Toyota Starlet Turbo S for about 3 years now. I have slowly been replacing all the worn parts on the suspension only to discover that I need a new Turbo Pressure sensor and idle control valve before the engine will run properly.This is my first car with electronics and sometimes I wish it had a carburettor and points!

Have been looking everywhere but to no avail. If I don't find anything soon it will become a very large expensive door stop.

Is there anyone out there who knows where to find such things?

Any help would be greatly appreciated

Cheerio

Halina

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Hello Halina and welcome,

The EP71 turbo is a rare site over here and they used the 2E-TELU which is different to the 4EFTE the EP82 and EP91 that are more common over here.

Can you post some pictures of the parts along with any numbers on them maybe they will be the same as ones from a 4EFTE. If not try the Irish toyota sites as they imported a few EP71's and try the Yahoo auctions in Japan.

Other than that fit a 4EFTE :D

hi, welcome to the club. when you say turbo pressure sensor, do you mean boost controller/guage?

got any pictures of the car, and the parts your after?

ryan

Would think it will be the Map sensor Ryan

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Hi Simon

That was really a speedy reply!! Will send photo soon. I do however have a part no for the Turbo Pressure Sensor ( which is a map sensor) . The naturally aspirated cars have sensors which work off vacuum. This one however works on pressure.

The no is as follows:

Turbo pressure sensor. 89421-10020 ND 079800-0870

It has one outlet for a hose which connects to the intake manifold and a 3 pin electrical connector. It is fitted on the rear bulkhead in the engine compartment near a diagnostics plug.

Someone told me that the sensor from the EP 82 could be the same, but have yet to confirm this.

The newer cars have the same type of sensor but with 2 outlets. So are not suitable.There also seems to be some kind of inline valve on the pipe which I assume is a one way .

What are the yahoo Jap sites?

Thank you for the warm welcome. Maybe I will get the Starlet shining again!

Sent from my iPad

Bye for now

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Hello Ryan

The description on the component is a turbo pressure sensor but is essentially a map sensor or main engine load sensor. The part no is really long winded 89421-10020 ND 079800-0870. Have seen some vacuum operated sensors where the first part of the no is the same , but not the last. The sensor diaphragm is acted apron by the boost pressure which then converts this to an electrical signal by the ECU.

It has one pipe connected to the intake manifold and a 3 pin electrical connector on the other end.

Will organise some pics soon.

Thank you for your interest. I think I will learn a lot.

I have never owned a turbo car before so it is all new.

Halina

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Hi mech5107

That is really a good idea about the idle control valve! Can this be found on most Toyota engines? I took my car for diagnostics and troubleshooting,when I got it back an apprentice gorilla had crushed the unit in a vice ( guess he thought a girl would not notice and said he tried to service it and it really is not a  necessary item......)

The car had a slight misfire and  high idle, when I got it back it was undrivable .(maybe his mate needed some parts????.)

Am I correct in thinking that any idle up solenoid will work even if it looks different?

Is it meant to increase idle speed when engine is under load.?

Am nervous taking my car anywhere now.

Thanks for letting me bend your ear

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Hey welcome along. I work with a bloke that used to live in south africa. Spot on lad.

yes that is a one way valve on the pipe.

Not to be a Dick here or anything but that is a filter. If it was a one way valve it would get a vac signal then stay as a vacuum. Its there to prevent any muck or debris getting into the sensor itself and giving a false reading.

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Hey welcome along. I work with a bloke that used to live in south africa. Spot on lad.

Not to be a Dick here or anything but that is a filter. If it was a one way valve it would get a vac signal then stay as a vacuum. Its there to prevent any muck or debris getting into the sensor itself and giving a false reading.

^^ i would have to agree it cant be a one way valve as it would need to supply both vaccuum and pressure readings where as a O.W.V would prevent it from doing so :)

on my car it also doubles up as a dampener for the pulses produced from individual throttles as there is no chamber to even out the vacuum readings!

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