ive been researching alot on this but most of the search results turn to the TPS... im not a mechanic but im thinking that this doesnt have to do with my tps.... any ideas? Thanks guys.
Code 51? could this be why my ac comp. wont turn on?
- Thread starter bombinuass
- Start date
How are you checking codes? If you hit the throttle, or have ac compressor on while checking it will set this code. Try clearing code. make sure ac is switched off and do not touch throttle. Check codes. if nothing shows up, test drive and recheck the same way. Test drive with ac off also. If code comes back i would check the tps make sure it is within spec and adjusted properly, per tsrm
yes. my ac dont even come on. but no the ac button was off i reset it no pedal at all. just drive round block get a code then i check it with EVERYTHING off and its a 51.
I would take a look at your a/c amplifier.
Location.
http://cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=15
Tests.
http://cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=AC&P=40
Location.
http://cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=15
Tests.
http://cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=AC&P=40
The last two what?
hvyman: that test you linked to is the system amplifier for the climate control system, not the AC amplifier. You're far from the first to make this mistake though...
hvyman: that test you linked to is the system amplifier for the climate control system, not the AC amplifier. You're far from the first to make this mistake though...
VTA and E2 and VC and E2 ....VTA and E2 read nothing with throttle open. we adjusted it and still nothing.
While that portion of your TPS may indeed be bad there is no failure mode of VTA or Vc that will cause code 51. Me thinks you're doing something wrong...
About the A/C...I assume you are correctly turning it on and the fuses are not open. You have switches that shut off the compressor under certain conditions. No or low refridgerant is one (the main) condition. It seems like the if VTA and VC have no continuity, the engine will not speed up past a certain point. And you want the IDL contact and E2 for 51. They should be closed when the throttle is closed, open when the throttle is open.
I thinks he doesn't have the probes on the wires. Or did the test with the key on.
I thinks he doesn't have the probes on the wires. Or did the test with the key on.
Also to add to this, and to my curiosity, he has a 87 with 89 climate control unit, are there any differences that may be causing this.