New ignition what to go with?

turbo87targa

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Nov 10, 2006
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I'm looking at getting a new ignition to replace and upgrade the 21 year old stocker, and know nothing about what I'm looking for. What would be a good ignition that's easy to install and is reliable?
 

turbo87targa

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think in my lack of knowledge I incorrectly labeled what I'm looking for lol.
I'm looking for that thingy I plug my key in to turn the car on lol. It's old and worn, I can pull the key out while the car is running, and it takes an act of god for the car to turn over.
 

lewis15498

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Sep 28, 2008
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I think its called a key cylinder kit. your not replacing the entire ignition, just the part that locks. Ur only gonna find that at the dealership or a junkyard, and the one at the junkyards gonna be just that, junk like yours (no offense) and the dealership one isnt gonna be the cheapest. I had to do this in my dads 96 tacoma. if its anything like the taco, its an easy thing to do. check a repair manual or inquire at dealership for tips on getting it out. also you may want to replace your door and trunk locks or you will need 2 separate keys. you could have the dealer or a locksmith rekey the key cylinder to match your key, but my guess is your key is worn out too.
Let me know how it turns out cuz i may need to do it too.
 

figgie

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Mar 30, 2005
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turbo87targa;1147262 said:
I'm looking at getting a new ignition to replace and upgrade the 21 year old stocker, and know nothing about what I'm looking for. What would be a good ignition that's easy to install and is reliable?


You are talking about the lock cylinder set from Toyota

http://www.cygnusx1.net/Supra/Library/EPC/291410/catalog.aspx?F=6712&P=1

That EPC is dated so those part numbers should have changed (sometimes they haven't but assume they have).
 

turbo87targa

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Will a new lock cylinder also help the car with turning over? That's the main reason I want to replace the part. I can live with the key coming out but I hate that it takes forever to start it.
 

turbo87targa

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I pulled some codes today and got 12, 24, and 51. I have no ac so 24 confuses me but other than changing my plugs and wires (both pretty old) I'm at a loss for why it won't turn over.
 

figgie

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turbo87targa;1148228 said:
I pulled some codes today and got 12, 24, and 51. I have no ac so 24 confuses me but other than changing my plugs and wires (both pretty old) I'm at a loss for why it won't turn over.


not for anything but what is 12 & 51?

The car gives those codes because there is something WRONG.
 

turbo87targa

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12 rpm signal: distributor, or cps, starter signal circuit
24 intake air temp sensor signal: intake air temp sensor circuit, intake air temp sensor
51 switch signal: ac switch signal, ac switch, ac amplifier, tps circuit, tps

I have no ac so 51 (said 24 by mistake) is confusing.
I have 2 sets of coil packs, neither helps it start.
Would any of those prevent it from turning over? Cranks and cranks but won't turn over
 

turbo87targa

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Yea but my tps has not been touched since I got it fixed 5 months ago.

Can your timing go off without the car running? I'm pretty sure it was right on when I last drove the car (about 2 months ago) but maybe it jumped a little somehow?
 

figgie

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turbo87targa;1148977 said:
Yea but my tps has not been touched since I got it fixed 5 months ago.

Can your timing go off without the car running? I'm pretty sure it was right on when I last drove the car (about 2 months ago) but maybe it jumped a little somehow?


That does not matter.

It is held in place by screws and as such means that the TPS can move out of alignment. You will need to re-adjust the TPS via the TSRM.
 

Poodles

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Jul 22, 2006
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Don't you get 51 if you hit the gas pedal while checking codes?

Code 12 = ECU not getting a timing signal from the CPS. Check the wires (this is typical).

Code 24 = bad AFM or connection to the AFM as the temp sensor is in there.
 

turbo87targa

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I think I need to wait a little before acting on these codes as it very likely may just b my wire harnes. I'll replace that frankenstien thing before I look to closely at $700 afms and such lol. I'm just going to tear down the motor since I need to do a rear main job aswell, get it all done now so it's done with ( pistons, rods, bearings, whole bottom end built) and I'll just grab a harness from champion before I drop it back in ( PITA!! I hate wireing!!! )