Blacktop 4A-GE swap into Corolla 86

[SER_GTR]

So it means that converter will convert the codes to OBDII but an OBDII Scanner wont be able to retrieve values?

can you paste a link for toyota OBD-I scanner?

NO.... What I Mean Is This Converter Only Allows Scanner That Are OBD-I/ OBD-II Compatible To Connect With Its Only OBD-II Port Input...! Usually They Came With OBD-1 And OBD-2 Both Inputs Types....But Some Might Need This Convertor...

Only OBD-2 Scanner Won't Retrive Data From OBD-1 System..But It Need OBD-1 compatible Scanner To Do So

Also I Am Not Sure If You Able To Get Any Live Data Feed......! So Spending On OBD-1 Alone Is Quiet useless....

OBD-II Is What Makes It Much Easier For You....On OBD-1....I Guess A Paperclip/Jumper Is Still The BEST...Not Worth Spending

[CityLover]

So how is the engine running?

[saadeez101]

So how is the engine running?

Good AH

Car was gone for paint which is almost done, next is poshish and AC

[CityLover]

Do update the pics also

[bravo122]

kindly upload pic of the car

[Hassan1991]

There's no pic of the car after swap in the hole thread

[saadeez101]

There's no pic of the car after swap in the hole thread

[Hassan1991]

Your going to paint the outside or also engine bay ?

[saadeez101]

Your going to paint the outside or also engine bay ?

was in full mood to do engine bay shower but settled for small part due to time limitations

[Hassan1991]

Okay

[saadeez101]

After spending for quiet an amount of time, and going through different diagrams I have finally understood how fan works
Here is what I got:
Conditions when Fans are switched on:

1. Fans run at full speed when : threshold temperature is achieved OR high pressure switch gives signal
2. Fans run at slow speed When AC is on and (threshold is not achieved) OR (high pressure switch gives signal)

Would it not be better if fans run high with AC?

[Hassan1991]

toyota radiator fan work on fail safe relay.
nope then it will continually run. engine will not get warm and go in open loop.

[Xulfiqar]

it took you forever - lol. any lektrishann could have showed you in a minute on your car, its the same since the 80s.

A/C dont need high speed unless the high pressure switch trips (high load on A/C) - slower fans dont load up the altrnator either. Toyota did a good job on the wiring that they wired it backwards.

If any circuit fails - the fans kick on high speed.

[Hassan1991]

exactly. while old honda's have simple relay wiring. if anything fails. fan is not going to work. although they have ecu fan control and fan switch.

[Xulfiqar]

The driver will be warned of the fan failure when the engine overheats, the gasket blows and the head cracks.

in toyota - the owner will get bad mileage, fuel chugging and annoyance.

Both cases result in workshop visit - but the honda visit costs a lot

[Hassan1991]

Haha yes, toyota still runs

[saadeez101]

minute

I always thought that Condenser fan was for AC only. After getting it from your comments, Diagrams, Ae80 diagram, Ae90 diagram and finally checking on an un-altered Ae90 I Realized that Both fan kicks in. Some "lektrishan" has installed separate relays for these tasks(Altered), so that when a complete fuse box was placed with working relays, output was still routed from modified circuit

I am truly delighted in my journey to understand wiring, wire colour convention, and you trying to teach your best to noobs

Thanks!

[Xulfiqar]

The ever lasting love affair of relays and electricians in Pakistan.

They installed more relays on a 3 relay circuit.

Wow.

[Proverbial_Slang]

The thread still lives!

[saadeez101]

Yup!

Somehow love of relay prevails, and not the affection of fuses in modified circuit; yielding in mishaps.

I think car manuals translated in urdu can provide a good starting point for car mechanics