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That is one clean engine... I would not torque the gasket down. Like IJ said, leave it alone.

Basically the inputs from the MAP and IAT sensor are feed into the MAF Translator which then translates and sends out the Karmen signal to the ECU. You can wire it into the existing wires for the ecu. EDIT: Check out this...

That looks exactly like my 2-tone 87 turbo!

This is something you definitely need to fix. The cam bearing caps have to be torqued properly. Not tightening them to the specified torque allows excess clearance, which is bad. You more than likely have done some damage to the bearing surfaces. You will need to check the bearing surfaces and...

Are you talking about the cam bearing cap? How is the bolt broken? Not there, couldn't get it out, or what?

I was 3 years old when my 1987 was made.

I'm putting an EGR system on my engine (7M-GTE JDM) and need to know exactly where and how the VSV for the EGR is mounted. The TSRM shows the location, but it is not really clear which way it is facing and what bolt it mounts to. Thanks!

Yes, it assists with warm start up.

Looks like he edited the post 8 mins after I posted that... lol

Check these power sources and get back to us. http://cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=51

Do you have wideband to monitor A/F Ratio?

Bypass valve

http://www.partsgeek.com/catalog/1990/toyota/supra/engine_mechanical/head_gasket_set.html I just bought this. Ishino (Stone) makes the gaskets for Toyota.

Here is a good write up for the job: http://www.supras.com/06/techcenter/display.php?QID=5

O.A.T = Outside Ambient Temperature. "Global fuel pressure correction" means you can adjust the fuel pressure. It is hard to tune the lex afm/550 combo without adjusting the fuel pressure.

Eh... maybe a tad longer :)

I did it by myself just reaching down by the intake manifold. I put a 14mm small socket on the bolt and loosened the nut with a 14mm box end wrench. My arms got scratched up, but the starter was off in 15 min.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=EC&P=16 To Check EGR Valve: a.) Apply vacuum directly to EGR while engine is idling b.) Check that engine runs rough or dies c.) Reconnect vacuum hoses to proper location

Code 24 is that the ECU is not seeing a singal from the air temp. It substitutes a default value. Code 51 is almost always TPS. Adjust it per TSRM spec.

A paper clip will work just fine if can't source the SST. http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx Edit: ISNMS edited his post and beat me to it! But there is the link for ya!