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Old 04-24-2022, 08:26 PM #16
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Quote:
Originally Posted by SurferUK View Post
I guess if it was immobiliser/ECU related you wouldn't even get the click?
if it's the immobilizer (keys not programmed to ecu) then it will turn over, catch and stall. the ecu will still report to the vehicle even if was an un-programmed key that turned the ignition on.
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Old 04-24-2022, 08:51 PM #17
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The truck has not been started after engine swap? This might seem simple but did you perform the initialization procedures. You can jump the relay and get power to the starter but with a good relay nothing. So that circuit seems to be operating correctly. The engine won't start after certain repairs or unplugging crucial sensors without completing initialization.. possibilities
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Old 04-24-2022, 09:59 PM #18
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Quote:
Originally Posted by hankd View Post
plug in an odb2 scanner. if it lights up and reads your vehicle then you can rule out the ecu (vehicle will report to the odb2 with ignition in on position). if the ecu isn't operational and reporting information to your odb2 with your ignition in the on position, you will get zilch when you turn the key. which seems like what you're describing. good luck!
obd lights up but came back with unable to connect, and seems as if it doesnt recognize the key in the on position.

before replacing this started it did click once, with the new starter now i dont get anything at all.

i touched nothing inside the car, the coincidence of the ignition being broken just happen to be there, thought that would fix the problem but nope.
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Old 04-24-2022, 11:10 PM #19
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i think the ecu should be able to connect at that point and report the vin. fried ecu is rare on these unless you get water in your floor and damage a wiring kick panel that feeds the ecu. so maybe something not connected right or no power to ecu?

i don't have my odb2 scanner to test, but perhaps someone can verify that your ecu should be reporting vin when truck is turned on. i don't know much about vehicle repair but i went through 3 ecu's trying to sort out water damage a few years back so i got to learn the behavior a bit. it was infuriating.
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Old 04-25-2022, 12:31 PM #20
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So far i have replaced
battery
starter

i can jump the starter relay and the starter turns over but i'm not getting anything from the keyswitch/neutral switch side of the relay when i press the key.

i can see the anti theft, light blink and it goes out once i put the key in, so that looks like its working accordingly.

i believe the only other thing that would prevent from sending the starter signal out is the neutral/safety switch on the transmission.

besides having a bad ecu, that i doubt because before the engine swap was turning on, constantly.
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Old 04-25-2022, 02:55 PM #21
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Quote:
Originally Posted by daprotege5 View Post
So far i have replaced
battery
starter

i can jump the starter relay and the starter turns over but i'm not getting anything from the keyswitch/neutral switch side of the relay when i press the key.

i can see the anti theft, light blink and it goes out once i put the key in, so that looks like its working accordingly.

i believe the only other thing that would prevent from sending the starter signal out is the neutral/safety switch on the transmission.

besides having a bad ecu, that i doubt because before the engine swap was turning on, constantly.
my neutral position switch went and it would start in neutral, but in park i got nothing when i turned the key, not even a click. that's pretty cheap to replace. it may not be a bad ecu, but if it's not communicating to your scanner when the car is turned on then i think that's a clue of some sort.
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Old 04-25-2022, 04:52 PM #22
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Quote:
Originally Posted by BlackWorksInc View Post
Nice! I was just curious, Toyota doesn't do anything beyond a Short Block so if you had found a Long Block or a crate motor I was gonna be like, "where the hell did you find that and can I get their number?" lol
Sorry to interfere with the thread, but I had to add this because I think it's hilarious. Toyota will sell a complete engine, currently for $20k which is $5k more than it was in March. I found it from the link in daprotege5's build thread.

toyota 4Runner Engine Complete. ASSEMBLY - 1900031A20 | Modern Toyota, Winston-Salem NC
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Old 04-26-2022, 12:04 PM #23
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Quote:
Originally Posted by djpope09 View Post
Sorry to interfere with the thread, but I had to add this because I think it's hilarious. Toyota will sell a complete engine, currently for $20k which is $5k more than it was in March. I found it from the link in daprotege5's build thread.

toyota 4Runner Engine Complete. ASSEMBLY - 1900031A20 | Modern Toyota, Winston-Salem NC
was just the short block, but still a great deal. not sure how they calculate a new complete engine to be $20k+ ridiculous. you figured they wanna keep as many cars on the road with current availability of vehicles.
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Old 04-26-2022, 12:24 PM #24
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Quote:
Originally Posted by daprotege5 View Post
was just the short block, but still a great deal. not sure how they calculate a new complete engine to be $20k+ ridiculous. you figured they wanna keep as many cars on the road with current availability of vehicles.
Yeah I think the short block is a great deal, especially if you catch the sale price. That $15-25k must be the price for them to take every piece and have a tech build a new engine, plus a big markup. You can buy all the individual pieces so it would make sense that they can build a new engine using them. I'm sure you could do it a lot cheaper yourself though lol.

Maybe they figure it's not worth the time to build the engines since most people will just get a junkyard engine or buy the short block.
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Old 04-28-2022, 09:53 PM #25
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So after all the BS and frustration. i ended up paying someone to come out and tell me the ECU needed to be replaced. Had a friend come over that usually helps me with everything, coincidentally that night as well. he literally moved the ecu-b fuse and swapped it with the headlight fuse as it looked a little irregular and low and behold she cranked right up. have been able to turn off and on three times now, let it idle for a good 30 mins since motor is brand spanking new. gonna change the oil tomorrow with fresh oil since it was a new build and than start the break in process. dying to get those miles out the way, weather has been perfect for some 4 wheeling here in Florida.
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Old 04-29-2022, 09:12 AM #26
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Quote:
Originally Posted by daprotege5 View Post
...he literally moved the ecu-b fuse and swapped it with the headlight fuse as it looked a little irregular and low and behold she cranked right up...
Best carry a few spare fuses for a while if it's not clear why the original ecu-b fuse blew. Any theory as to how it happened? Maybe wrenching with the battery connected and grounded a circuit?
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Old 04-29-2022, 09:47 AM #27
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thats the thing fuse wasnt even blown, kinda like whats happened with the injector fuses were it looks a little burnt on one side. he literally just swapped the fuses out and cranked right up. which would make sense since the ecu-b fuse is right next to them. i vaguely remember throwing out a shit **** for sparking the battery so that might have done it. but she's running now, and definitely keeping some fuses on hand. have had it on 3 times for 30 mins everything seems to be running fine. gonna change the oil and filter since it was a fresh engine just to be overly precautious. now to a 1000 miles so i can start towing my toys again.
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Old 04-29-2022, 04:40 PM #28
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Glad you got it running , at one point I was thinking it could be a fuse for the ECU since you said it wasn't recognizing/seeing the ECU, but I just figured you had checked the fuses which is usually the first thing to check when there's an electrical issue.
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Old 04-29-2022, 05:04 PM #29
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I think problem is in ignition
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Old 04-30-2022, 01:11 PM #30
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Quote:
Originally Posted by AuSeeker View Post
Glad you got it running , at one point I was thinking it could be a fuse for the ECU since you said it wasn't recognizing/seeing the ECU, but I just figured you had checked the fuses which is usually the first thing to check when there's an electrical issue.
Definitely went through all the fuses to say I was both happy and wtf that it turned on for him but hey it turned on. Put about 20 miles on it so far. And seems to be running good. Scanner shows one of the o2 sensors failing so gotta fix that but all and all she’s running great.
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