6G Celicas Forums

I blew my headgasket on 14 psi boost, but I think it was in bad shape from before.
I have been searching for a upgraded one for 7a-fe and it looks like the one to use would come from a 4a-zge (think it was that, dont have my notes atm)

Greddy EM is also recomended so you can adjust fuel cut and ignition.
Still cant get the ignition to work but everything is ok.
Gonna make a howto as soon as I figure out the ignition wire.

@Pebel89: could you look at your ignition wire harness setup? Should be 2 wire's on plug number 2 on the EM blue.

Run on stock head gasket?

www.greddy.com or www.google.com


"15910902 Greddy e-Manage Harness for ST205 Celica" only one I found for celica, but I only surfed on google for like 20 sec.

Any know what wire on the ecu that's for ignition to the E-manage?

I have 2 different ecu pin outs from Toyota and they are different...
Both are for 7A-FE.

You could go with e-manage and get the greddy boost sensor for it.
You'll also get to controll the injectors and the fuel cut with it.

You'll get some knocking with to much boost and advanced timing.
Low fuel octane and warm days wont help either

I am not familiar with the safc2, but I picked the E-manage cause it can change the map sensor signal so no fuel cut, and the ignition timing.

I have read alot of this and that, so instead I just went on with it and running 14 PSI on stock engine.
Still some problems with the e-manage injection wire's but I hope to solve it pretty soon
Been running for 1 week (wohoo!) and no faults/problems so far.

You need the cabel from GReddy anyways.
It's not a ordinary usb

Can trade you the software for your wire setup

Upgraded pump don't change the pressure, only the flow.

Here is one for 7A-FE, just incase someone was looking for it in the wrong spot

And it comes with a shift light

I got the addon ignition harness so should be able to adjust the ignition.

Problem is getting it to work on 7a-fe, cause I cant find any info anywhere on 7a-fe + EM blue

Now I need the rpm signal and I was told I could get it from the diagnostic box
IG- ? Still now go on the e-manage but I will test more with the basic settings.

KM/H though but they look nice

Should check your oil pressure.

It's a 1996 mod

I did get a print from a friend but it's not enough.
Kinda need the injector and ignition wire location.

pic here

Any know how much volt this 2 bar map sensor gives out at 0 boost ? (engine not runnig)

Cant find it any where and I am experimenting with 2 other sensors.

Any headgasket that's interchangable for the 7A-FE ?

Or any know who that sells reinforced ones for this engine?

Not everyone that have a 15" headrest

That ebay FPR will actually close fuel return when the pressure is risen enough. Pretty crappy.

Stick with known brand that works

Figured out this weekend that Precision injectors fit the fuel rail.
Need some grinding on the bottom to fit the top though.

Theese injectors are pretty cheap and come in high imp.
Need to change the connector also so think this is just for thoose that cant get any other injectors or have some one the shelf.

Any one have a e-manage wire diagram or a celica st200 wire diagram I could have?


7A-FE engine. Not sure if the car has the same ecu pinout as any other Toyota's.

Any know how large the oem 7afe injectors are?

Sure you can, just hook off the rod from the actuator on the turbo.
Wont build any boost with that off.

Do you have a e-manage wire diagram? ( I need one )