Onnaj's 1998 Celica ST to 4AGE 20V Blacktop conversion, Next project: C160 LSD 6-speed gearbox :) Options

[onnaj]

Follow my topic cause in the next months i'm going to put a 4AGE 20V Blacktop engine in my 1998 Celica 7AFE. I just love the noise and revs of the Blacktop. I was also doubting about the Beams, but that engine was much more expensive, so the Blacktop wil be the one for me at the moment. Thought also about the 1MZ-FE, but it hasn't been done a lot in Holland and the engines cannot be find over here.

So i've order the blacktop with all the ancillaries, i think at least, and through club4ag.com i've ordered an uncut wiring harness and ECU from a 6 speed m/t. I'm going to use my own C52 gearbox.

So will be continued soon.....

This post has been edited by onnaj: Aug 28, 2013 - 6:28 AM

[onnaj]

So has been a long time since the last updates but the engine is in for a week or 2 now!

I had to grab the power steering lines from a 4EFE Corolla and also took the reservoir of it. I used a part from the OEM power steering line from the Blacktop (it was ofcourse cut! ) and let a hydraulic company press it together with the Corolla power steering line. Its a great fit, you can see in the pictures below.

For the throttle cable i grabbed a cable from a 93-er Celica 5SFE from Rockauto. It's a bit long but besides that it's a nice fit. We've made an adapter plate for the throttle bracket so it cannot move.

For the igniter we've also made an adapter plate so that's also a nice fit. Going to paint it black later this week, so that it's completely finished!

At the first startup we had 4 codes or so. IAT (not connected), MAP, TPS and some code i don't remember. After three double check the vacuum lines and connecting the IAT all the codes were gone except for the TPS code, 41.

And that one wouldn’t go away. I’ve bought a new tps, asjusted it with Blacktop manual, but still the code. It made me go crazy. Then i’ve decided to meausure the voltage at the ECU of the VTA and E2 connectors. They voltages should be around 0.3V @ idle and about 4.7V @ WOT. I’ve meausured 4.7 @ idle and 0.00V @ WOT. Hey that’s strange i thougt, look like it’s upside down or so. Double checked the manual if i mounted the sensor upside down, but i didn’t.
So later that evening i had a sudden inspiration. I remembered using the TPS connector from the 7AFE while that one is exactly the same. So i thought: are those pins located at the same position as the one of the 4AGE TPS??? So i went to bed and first thing in the morning was grabbing the manual and walk to the car. And YES!!!! found the problem! They’re located in the opposite way. So i’ve repinned the connector and gone is the code

The engine runs a lot smoother now! Still running too rich, cause i can smell the fuel and hear some little backfires now and then. Also the starts are a bit difficult now and then. It seems to run on 3 cylinders for a second and then it runs fine.
Have to sort out what’s causing this. Maybe the O2 sensor had a hard time after the first starts with all the oil and residues of the painted parts Have to check this out later on.

Also the valves are ticking a bit. But they were about 0.01-0.02 mm out of spec…meaning too loose. I’ve didn’t buy new shims while mostly the valves are tighten up after a few thousand km. So hopefully that’ll go away or otherwise i have to re-adjust them.

So the pictures:

New harness made by myself :












Engine compartment:


power steering lines and reservoir: