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Rough Idle and Running Rich

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Old Oct 25, 2009 | 02:58 PM
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Rough Idle and Running Rich

i accidently started my truck with the ecu unplugged on my 86 toyota 22r. i changed the plugs but the truck still runs rich and a lot of black smoke comes out. I was wondering if the timing on ignition might be the problem.
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Old Oct 25, 2009 | 03:48 PM
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22r (carbureted) or 22re (fuel injected)?

The "ECU" for the 22R doesn't really do much - just the electric choke IIRC.

In either case, the ignition is controlled by the distributor, not the ECU.

My guess is that you actually mean 22RE and the ECU reset to original specs, and needs some time to "learn" your truck again and adjust the fuel mapping.

Last edited by tc; Oct 25, 2009 at 03:50 PM.
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Old Oct 25, 2009 | 04:35 PM
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i know for sure its a 22r. If the choke is on how to i turn it off
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Old Oct 25, 2009 | 06:02 PM
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I believe you just need to unhook the wire.

Does it run OK once it warms up?
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Old Oct 25, 2009 | 06:10 PM
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once its warmed up the idle shakes the whole car vigorously.
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Old Oct 25, 2009 | 07:08 PM
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o and am i removing a electrical wire or a cable from the carb
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Old Oct 25, 2009 | 07:59 PM
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Just one electrical wire.
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Old Oct 25, 2009 | 08:09 PM
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Is it possible for you to take a picture of it or the wire?

Last edited by Tofudude; Oct 25, 2009 at 09:34 PM.
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Old Oct 26, 2009 | 06:00 PM
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Sorry - goin' off memory from my '89 22R ... that was wadded into a ball 6 or 7 years ago
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Old Jun 7, 2011 | 08:59 AM
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Problems with my 86 22R

My toyota pick 22R runs very very bad. It idles up and down, it blows black smoke, when its cold it will run at higher Rpm's but run kinda rough still and when i turn it off after it's all warmed up and start it up again the idle drops down and runs alot better but still kinda rough. Do you think that's a problem with the choke or something?
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Old Jul 18, 2013 | 08:49 PM
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Help , please

Hi everyone I need help I have a 92 Toyota pickup 22r 4cylinder. My truck has a problem it chokes sometimes when I want to start it .. its also throws black smoke... I changed maf sensor, spark plugs wires but nothing changes.. can someone help me and let me know if anyone's had the same problem I'll really appreciate it..
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