Finaly 5AFE Swapped in EE90

[SER_GTR]

then why was it flashing error 52 once after the swap? iv seen it wired in there....

5afe does have one. 4afe doesnt (i dont think so )

thats strange if 4afe don't have and 5afe doesn't :S

[Vaqas1]

Ser_GTR There are two wires coming from Petrol pump now tell me where should i connect these in ECU to make them work via ECU?

ROFLMAO.....Petrol Pump se 2 wires arahe ha all the way to ur car its fuel pump not petrol pump
The pump is connected via relay and ecu control -ve part of relay.....!! do you know how relay works and how to wire a relay?? then i can tell you

oh hehe yeah fuel pump after this much khuwari you do tend to forget these things and that also when you are with pathans all day for these things :p.

I know how to wire a relay so let me know and I can try.

[Vaqas1]

hehe yeah, its a....coincidence! i originally went for a 1nz or 2nz or 1zz swap but considering the wiring part and costs i went for '16valve engine' and thn too this 5afe was my luck! i also found 2010 engines there in peshawar like 3zr valvematic etc etc....impressive! lol

whenever you change your base timing, make sure to reset the ecu by removing battery terminal for a minute or so. also do check that your timings arent too advanced.

also check that the idle speed control valve is not jammed. just remove the grip on it, remove the two screws and it comes out, a cylinderical thing in the throttle body can be seen, make sure it can turn around freely.....

and if this is happening on cng then....tune it more!

That thing is already checked. The valve is not jamed and in proper working condition.

BTW how much did you paid for this engine? Any pics of the engine?

[SER_GTR]

here you go
ECU Triggers relay simply and when relay is triggered it makes contact b/w +ve of fuel pump and ground is already there with body ...thus making it work....!!

[Vaqas1]

Ok Thx. How about the STA?

I will remove it from Ign bcoz this is also risky if you are into crash the pump will keep on working.

[Xulfiqar]

the fuel pump is wired from the circuit opening relay - if you dont have it go buy one with 5 pins along with its holder plug - install it inside the car next to the ECU and main relay

The pins in the relay are
E01 = earth
IGN = 12V + from main relay
STA = starting signal from key (branched to ECU too)
FC = fuel cut pin in ECU
FP = Fuel pump and pin FP in diagnosis box

The way the fuel pump is wired is (its grounded directly to the frame) and gets 12V+ once you crank the engine to start and then latches on permanently to 12V+ when the ECU is recieving NE (crank sensor) signals from the distributor - if you crash the car - the engine stops and the fuel pump also stops (the reason toyota also installed the FP point in the diagnosis box was to check for fuel pump voltage and also to prime the system (if empty) before starting - otherwise it becomes super super hard to start as you dont have fuel in the fuel rail.

The A/C is wired as
AC1 = AC switch + input going to compressor relay
ACT = A/C compressor rpm sensor, if you dont have an A/C amplifier in your car use the IGF wire through a relay to bridge to ECU once you have A/C compressor operation - it ensures you have optimum timing advance with A/C on - it tells the ecu that the compressor clutch is actually engaged

The idle up valve is called the ISC pin connected with 2 fat vacuum pipes and has 2 wires in it - one 12V + switch and the other ISC which comes from the ECU raising rpms to normal once the compressor kicks in

for the love of God please use a 15A or 20A fuse for the whole EFI circuit including fuel pump (check all resistances to measure amp load) - it saves many things from fire - if you short a positive anywhere the fuse will blow - no fuse = fire (yaaaay - taaliyan)

btw the diagram shown is for 4AFE - because it also shows a cam position sensor (G1 pin) - the 5AFE just uses a crank sensor and no cam sensor - to verify - the distributor would have 2 plugs one with 2 pins - thats for the coil (positive and negative-rpm trigger) and one with 4 wires, NE, NE- IGT and IGF, no G- sensor

This is just the tip of the iceberg when I wire up a car - and all cars that I have wired up start on first key with no check light

[Xulfiqar]

vaqas connect the load signals to the ecu ELS points - headlamps for one, brake lights and defogger too. if your ECU also has a CF pin its for cooling fan - signalling the ECU that the radiator cooling fan is operational - if not you can wire it to the ELS - but it usually does not affect rpms unless your fans are super old.

[Xulfiqar]

Well well this ECU thing is kinda hard to handle now i understand why a 5AFE outstanding motor costs 60 and 2E 12 valve costs over 80 :p. People get sick with these swap not going well and 2E well even a chota can tune it :p.

I swapped 1ZZ-FEs for a couple of people into older Indus Corollas - Got em cheap due to this reason. lol - btw it fits very nicely too as its much smaller and lighter than an A series.

[Vaqas1]

Xulfiqar thanks a lot for such a detail clarification

I wish i was in KHI i would have requested your kind help. But i will go throw all these details and try to learn and fix

[SER_GTR]

^^ see How Clearly You Are Defined now....

That 15A main fuse is must and after that +B and +ve to main relay are given......!! never ever try to power up +B on ecu directly with battery or sometimes mostly jumpers get short while removing battery so that can cause damage to anything + over volting + anything wrong in wiring can simply blow fuse rather than blowing the whole thing.....!!
EFI main relay +12v main 15A fuse + fuel pump relay is all main aspects of any EFi engine swap.....!!
in your main fuse box you easily find Efi main relay and 15A efi fuse.....i use my main fuse box of 86 for these and i have those already inn there...just have to wire.....!!

[SER_GTR]

I Hope So we Are Not Scaring You People To Check each And everything again

[ahsanonline]

I Hope So we Are Not Scaring You People To Check each And everything again

yes thats the feeling i have right now! haha

thankyou both ser_GTR and mr. Xulfiqar for the detailed info!

when i asked the electrician to wire the A/c properly, he did take the glovebox out and did something in the wires in there as well. Im thinking my car does have an A/C amplifier; how the heck else would it have known when to engage/disengage the compressor in all sorts of scenarios...both in summer when cooling is required and in winter when i use it for defogging alongwith the heater? my car must have tht amplifier, it MUST HAVE!!!

[Vaqas1]

Well Ser I dont see any fuse attached to ECU wiring. The box outside i feel is there where it got all the relays but the desi electrition must have done some thing to bypass it.

I will have to done this by myself or find some one in Isb pindi who understand all this or come to khi and you can help me :p.

[Vaqas1]

Some pics i took today after cleaning the engine.

Do comment. Also pic of the sensors all seems connected.

[Vaqas1]

[Vaqas1]

vaqas connect the load signals to the ecu ELS points - headlamps for one, brake lights and defogger too. if your ECU also has a CF pin its for cooling fan - signalling the ECU that the radiator cooling fan is operational - if not you can wire it to the ELS - but it usually does not affect rpms unless your fans are super old.

Do i again need some sort of Relay for this? I mean the fan is working and the auto switch also connected to the wiring that came with engine.

I just need to put my head lights and fan on these ELS points because as the lights turned one (Because I got relay for them they put little bit more load) or cooling fan kicks in at the same time the engine drops rpm from 900 to almost 600.

[Vaqas1]

Found this nicely explained pic for Fuel Pump relay. Correct if some thing isnt right

Wiring Diagram:

White/Black - Wires to to STA - Starter/ECU Start Signal.

White/Red - Wires to EFI Relay - +12v Ignition Switched power (Run through a suitably sized fuse, 10A is usually fine, but depends on your fuel pump).

Green - Wires to engine run signal - "FC" pin on 4AGE ECU. Or if you are running an AFM engine, this wire should connect to the AFM.

Black - Wires to body earth - Wire to closest earth point.

Blue/Black - Wire to fuel pump positive - Gives power to your fuel pump.

[SER_GTR]

Do i again need some sort of Relay for this? I mean the fan is working and the auto switch also connected to the wiring that came with engine.

I just need to put my head lights and fan on these ELS points because as the lights turned one (Because I got relay for them they put little bit more load) or cooling fan kicks in at the same time the engine drops rpm from 900 to almost 600.

1st make sure how to use those pinouts.....sending some signals or using these points.....!! xulfiqar can better clear it....!!

[SER_GTR]

Found this nicely explained pic for Fuel Pump relay. Correct if some thing isnt right

Wiring Diagram:

White/Black - Wires to to STA - Starter/ECU Start Signal.

White/Red - Wires to EFI Relay - +12v Ignition Switched power (Run through a suitably sized fuse, 10A is usually fine, but depends on your fuel pump).

Green - Wires to engine run signal - "FC" pin on 4AGE ECU. Or if you are running an AFM engine, this wire should connect to the AFM.

Black - Wires to body earth - Wire to closest earth point.

Blue/Black - Wire to fuel pump positive - Gives power to your fuel pump.

if it was me...i simply grab a +12v adopter , a d-m-m and confirm it myself which point is doing what
on relay there is diagram embosed b.t.w
i don't really believe on color coding as sometimes they make you suffer.....!!

[Vaqas1]

Ser these relays are common and used by almost all electrition so i will take help of one and i will let him know which wires to be used.

I will first get that fuel pump fixed in the tank properly than wire it properly and than use ecu to power it :).

BTW one more problem i have some time is engine drops rpm to 500 and than it picks up after few minuts to normal 800 to 900. I have not yet got the throtle body serviced so i guess that might be the reason.