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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Checking Codes

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Old Jan 31, 2010 | 03:29 PM
  #1  
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Checking Codes

I've searched all around and I cannot find a good thread on reading trouble codes with a paper clip.....
Can someone tell me the process
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Old Jan 31, 2010 | 04:07 PM
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From: Statesboro or Loganville, GA
the gray box next to the fuse box on the passenger side fender under the hood jump the t1 and te1 terminal and turn the ignition on and count the flashes then consult the FSM or a chiltons manual
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Old Jan 31, 2010 | 04:44 PM
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i know it sounds dumb but how do you see the flashes
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Old Jan 31, 2010 | 05:12 PM
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From: New Brunswick, Canada
Your check engine light will flash. there are however initial conditions that must be met.
Turn on the ignition do not start
With a jumper wire, paper clip, etc. short Tand E1 of the check connector
which is close to the ignition coil on the 2nd generation models. A previous post told you the points to short and the location of the check connector on newer models already.

1-Battery above 11v.
2-Throttle plate fully closed (TPS sensor IDL points closed
3-Transmission in Neutral
4 Accessory switches off
5-Engine at normal operating Temp

Normal operation Code #1 no malfunction 4 seconds light off, .5 seconds light on, 4,5 seconds light off, .5 seconds light on and so on.
If this is the code you get there is nothing wrong, If you do get a code you will need the code list to match up with what you are seeing.
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Old Jan 31, 2010 | 05:14 PM
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From: Statesboro or Loganville, GA
yeah the check engine light flashes count the flashes and post them here I can decipher them for ya
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Old Jan 31, 2010 | 05:17 PM
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From: Murfreesboro, Tn.
If you need the codes I got em. Just message me and I'll send you the list in a reply
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Old Jan 31, 2010 | 05:43 PM
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omg i feel really dumb.....i was lookin for an arc on the paper clip
thanks alot....
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Old Jan 31, 2010 | 06:18 PM
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ok i get 5 flashes, 2 sec pause, 2 flashes, 5 second pause
would that be a 5 and 2 or 52?
thanks for the help
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Old Jan 31, 2010 | 06:22 PM
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sounds like a code 52, knock sensor. the long (5 sec) pause separates the codes. the shorter pause is in between the 2 numbers in the same code.
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Old Jan 31, 2010 | 06:25 PM
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wat does a bad knock sensor cause?
I've been driving it fine on that code for a year n a half
the check engine light comes on every time i hit 2300 rpm in 2nd gear
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Old Feb 1, 2010 | 07:08 PM
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what does the knock sensor plug look like? (any pics, please)
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