1jz code 14 out of no where...ideas pls.
#1
Lexus Test Driver
Thread Starter
1jz code 14 out of no where...ideas pls.
So my car has been rock solid for about a year and a half now, then out of no where, the check engine came on for about 3 seconds while driving and the car began to miss pretty bad, and out of no where the light went away and all was fine for about a week. Then the same thing happened again. This time I went to see what codes it came up with and I got 2 codes: 14 and 34. Code 14 says ignition signal and code 34 I couldn't find. Any ideas what this could be? Bad coil? Bad ignitor? All input greatly appreciated. This is my daily so I'd like to get it up and running asap.
Thx!
Thx!
#2
Pole Position
From the workshop manual - it says
-Abnormal Turbocharger pressure
Code 34; usually happens when you are hitting boost cut.
-Abnormal Turbocharger pressure
Code 34; usually happens when you are hitting boost cut.
Last edited by soarer93; 04-24-11 at 05:39 PM. Reason: more info to add
#3
Lexus Test Driver
Thread Starter
Right now when I start the car at idle, it misses like its on 5 cylinders or something... It sounds like a scooby ......
This has to do with the ignition system, I just don't know where. Would a bad ecu be possible? Like I said, car was running like a clock and then this came out of no where...
This has to do with the ignition system, I just don't know where. Would a bad ecu be possible? Like I said, car was running like a clock and then this came out of no where...
#4
Lexus Test Driver
iTrader: (9)
code 14 igniter signal to ecu missing - Ignition signal (no "igf" signal to ecu, no signal from igniter 4 times in a row
Seems that if this started all of the sudden maybe the igniter went bad or the IGF pin in the igniter is burnt up.
You could also check the resistance of the IGF wire from the igniter all the way to the ECU to see what it look's like.
If it started all of the sudden you'd think the wiring was ok and a hard part went bad(igniter)
Seems that if this started all of the sudden maybe the igniter went bad or the IGF pin in the igniter is burnt up.
You could also check the resistance of the IGF wire from the igniter all the way to the ECU to see what it look's like.
If it started all of the sudden you'd think the wiring was ok and a hard part went bad(igniter)
#5
Lexus Test Driver
Thread Starter
code 14 igniter signal to ecu missing - Ignition signal (no "igf" signal to ecu, no signal from igniter 4 times in a row
Seems that if this started all of the sudden maybe the igniter went bad or the IGF pin in the igniter is burnt up.
You could also check the resistance of the IGF wire from the igniter all the way to the ECU to see what it look's like.
If it started all of the sudden you'd think the wiring was ok and a hard part went bad(igniter)
Seems that if this started all of the sudden maybe the igniter went bad or the IGF pin in the igniter is burnt up.
You could also check the resistance of the IGF wire from the igniter all the way to the ECU to see what it look's like.
If it started all of the sudden you'd think the wiring was ok and a hard part went bad(igniter)
#6
Lexus Test Driver
iTrader: (44)
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,139
Likes: 0
Received 7 Likes
on
7 Posts
I don't think it's the Ignitor it's the iGF wire like Ryan said the wire is either broken or not making a good contact.
I don't know what color it is on the 1jz but Red with yellow on the 2jzge and gte and pin 58b on the 2jz.
http://www.supraforums.com/forum/sho...nd-coil-wiring
I don't know what color it is on the 1jz but Red with yellow on the 2jzge and gte and pin 58b on the 2jz.
http://www.supraforums.com/forum/sho...nd-coil-wiring
#7
Lexus Test Driver
Thread Starter
what makes this so annoying is that its so random...I started her up and drove around for an hour or so with no problems. I checked continuity from the IGF wire next to the coil down to the ecu, no problem. I took a look at all the coils and wires, they are all good since i replaced all the pigtails when i did the swap over a year ago.
I ended up taking out the ecu, opening it up and looked for some leaking caps. It looked pretty cherry inside but i sent it out to driftmotion to replace the caps for me. Hopefully that will be my issue...
I ended up taking out the ecu, opening it up and looked for some leaking caps. It looked pretty cherry inside but i sent it out to driftmotion to replace the caps for me. Hopefully that will be my issue...
Trending Topics
#8
Lexus Test Driver
Thread Starter
oh heres a link to the service manual that talks specifically about code 14 for future refrence...
http://mkiv.supras.org.nz/articles/engine_2_14.htm
and for reference:
http://mkiv.supras.org.nz/articles/engine_2_14.htm
and for reference:
Last edited by evileagle; 04-26-11 at 10:44 AM.
The following users liked this post:
joe diego (01-29-20)
Thread
Thread Starter
Forum
Replies
Last Post
CallmeQ
GS - 1st Gen (1993-1997)
2
09-26-09 12:19 PM