1987 7mgte ECU. Symptoms of a bad ECU :evil5:

[spainobain1234]

when driving, it is missing
It stops accelerating at certain RPM's while the gas pedal is to the floor
No boost leaks, no vacuum leaks,
Brand new Toyota 7mgte black electronic AFM in LExus Afm housing,
550cc injectors are now leaking fuel somehow
I believe its ECU. I spliced the SAFC wires into the ECU, then to realize I did it all backwards.
Maybe the ECU fried?:evil5:

But Now what?
I am officially down by... 1 Toyota Supra.
The only
Never Again.

 

[SC61 MK3]

Um maybe it's the LEAKING FUEL INJECTORS

Fix that first. I would also unwire the safc to rule that out. Than swap ecu's and see

Just curious what exactly you mean by wired the safc backwards

 

[spainobain1234]

The diagram was showing the ECU terminals rather than the ECU wiring clips.
I had to splice into the wiring clips, but I was following the ECU Terminal diagram, and tapped completely into the wrong wires, then I ran the car. It idled for a good 30 minutes in result of prepping the brand new GT35 turbo, and then I tested it, and it would not exceed 3500rpms. Also, the brand new fuel injectors are VENOM injectors. I thought I would give them a try. Now they are leaking.
I am gonna save up my broke a** some money, and get some RC 550cc injectors.
Could the injectors cause the engine to not accelerate past 3k rpms when accelerating? or is that another issue?

 

[supraguy@aol]

Ah, Venom injectors. Nuf said.

I would do exactly as SC61 said. You might not have an ecu problem.
What codes are indicated?

 

[supraguy@aol]

Let me repeat my question;
What codes are indicated?

 

[spainobain1234]

Codes are...
24 ?? (HAT) intake temp sensor
31 ??? I have a New AFM...
34 Atmosphere BOV
51 I adjusted the two screws to the throttle body so it wouldn't die
There are no boost leaks, I have an atmosphere Blow off valve
I also have a brand new 1987 toyota supra Air Flow Meter from Titus Will Toyota Dealer installed in the LExus AFM housing.
When I wired the SAFC (http://www.apexi-usa.com/manuals/electronics/safc_manual.pdf)
The I wired it backwards looking at the ECU pinout inside out, probably frying the ECU. I am thinking that is why I am suddenly pulling all these sudden error codes.

http://www.cygnusx1.net/Supra/TechTips/engine_error_codes.aspx
I dunno what to do.

P.S.
Thanks

 

[jetjock]

Crack me up...

 

[spainobain1234]

DOES ANYBODY HAVE A 1987 TOYOTA SUPRA ECU FOR SALE?
I need one for an automatic.

 

[radiod]

Absolute first thing that needs to happen is get those Venom injectors out of there. Then start working through the codes. Start with code 51, run through the TPS test/calibration in the TSRM.

 

[Nick M]

Symptoms of a bad ECU

The car doesn't run.

 

[Nick M]

Codes are...24 ?? 31 ??? I have a New AFM...

24 and 31....go look at the EWD. That should narrow it down for you.

34 Atmosphere BOV...There are no boost leaks,

If the blow off valve leaks, then you do have a boost leak.

51 I adjusted the two screws to the throttle body so it wouldn't die

If you have 51, the TPS is not adjusted correctly. If you know how to loosen the screws, you can adjust it in the car while the key is on and the engine is off.

When I wired the SAFC (http://www.apexi-usa.com/manuals/electronics/safc_manual.pdf)
The I wired it backwards looking at the ECU pinout inside out, probably frying the ECU. I am thinking that is why I am suddenly pulling all these sudden error codes.

That or the codes are from the ECU seeing the wrong signals from the wrong wiring.

 

[Rollus]

A TCCS that doesn't get the afm signal won't run the engine more than a certain rpm.

Your ECU isn't fail but is in fail safe mode.
When TCCS fails there is a backup (limp) mode provided by another chip.

All you need is to sort out your wiring. Unplug battery to do this.

Check the tip provided by Nick M ;-)