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 Loss of power - Help!!
#776842
01/02/07 09:11 PM
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Joined: Apr 2003
Posts: 51
OP
Getting the Wheeling Fever
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Still not getting power from my '89 22RE pickup. The engine seems like the timing is retarded when on hills or under load. New air filter and spark plugs were recenty done. I checked the cat (twice!) which was fine and checked the fuel pressure which was fine. The truck threw a code which indicated the knock sensor.
Replaced it with a used one and still no power. Read some posts here about the unreliability of used knock sensor's
so I purchased a new one. Sensor cable looks OK and reads voltage. Still no power under load with the new sensor.
Toyota recommends a new ECU when the knock sensor is replaced and the problem still exists. I don't really want to spend any $$ on a new ECU if it could be something else. ECU looks fine inside...no meltdowns or burn marks.
Truck idles fine and runs ok on a flat road or down hills. Not a Cal. truck and no mods...
Any thoughts or recommendations? Anyone got a used ECU (non-California)for an '89 pickup they wish to part with?
Thanks.
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 Re: Loss of power - Help!!
[Re: Ashokan1]
#776843
01/02/07 10:18 PM
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Joined: Jan 2007
Posts: 10
Need a Spot
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mine runs like this in the rain too but usually goes away after a while?
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Re: Loss of power - Help!!
[Re: MDMarc]
#776844
01/03/07 04:18 AM
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Joined: Apr 2003
Posts: 51
OP
Getting the Wheeling Fever
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This started several weeks ago and I (and a mechanic) haven't been able to clearly diagnose the problem. I'm now thinking, as previous replies have suggested, maybe to take a look at the TPS. I'll have to search on how to diagnose it. Although it idles fine and revs fine without a load...hmmm <img src="/forums/images/graemlins/confused.gif" alt="" /> Your case may be the ignition coil. I've had coils act that way in damp weather.
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Re: Loss of power - Help!!
[Re: Ashokan1]
#776845
01/03/07 07:32 PM
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Joined: Dec 2004
Posts: 143
Wheeler
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Mine does this to ... Every January for the last 5 years it does this... lasts a few weeks and then its gone for the year again.... I finally got tired of putting money into it trying to fix it.. Ill just deal with it for a few weeks. My truck just hates jan
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Re: Loss of power - Help!!
[Re: salvo]
#776846
01/05/07 09:06 PM
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Joined: Apr 2003
Posts: 51
OP
Getting the Wheeling Fever
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Is this a common problem with the early Toyota's that is...not solvable??
Maybe it's a cold weather phenomenom that the more northerly members experience? Any ideas out there??
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Re: Loss of power - Help!!
[Re: Ashokan1]
#776847
01/05/07 09:32 PM
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Joined: Oct 2002
Posts: 1,305
Body Damage is Cool
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Still not getting power from my '89 22RE pickup. The engine seems like the timing is retarded when on hills or under load. New air filter and spark plugs were recenty done. I checked the cat (twice!) which was fine and checked the fuel pressure which was fine. The truck threw a code which indicated the knock sensor.
Replaced it with a used one and still no power. Read some posts here about the unreliability of used knock sensor's
so I purchased a new one. Sensor cable looks OK and reads voltage. Still no power under load with the new sensor.
Toyota recommends a new ECU when the knock sensor is replaced and the problem still exists. I don't really want to spend any $$ on a new ECU if it could be something else. ECU looks fine inside...no meltdowns or burn marks.
Truck idles fine and runs ok on a flat road or down hills. Not a Cal. truck and no mods...
Any thoughts or recommendations? Anyone got a used ECU (non-California)for an '89 pickup they wish to part with?
Thanks. Could it be related to the spark plugs? No engine codes?
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Re: Loss of power - Help!!
[Re: ZUK]
#776848
01/05/07 09:36 PM
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Joined: Jul 2006
Posts: 139
Wheeler
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Regarding cold weather problems...cold temperatures will exaggerate any electrical problems such as worn wires and too-thin casing by reducing resistance. If a bare wire is in close proximimity to another metal object, it will be easier for it to arc and ground out. Just a thought, but I had similar problems with my ignitor wiring only when it was cold.
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Re: Loss of power - Help!!
[Re: VanillaTHUNDA]
#776849
01/05/07 10:47 PM
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Joined: Jan 2005
Posts: 199
Wheeler
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Boy seems like this could be so many things. Clogged injectors possibly, TPS could be out of adjustment, have you checked the timing and adjusted the valves? Also you could potentially have a vacuum leak somewhere that is robbing you some power. I would check all the hoses and see if there is a vac leak anywhere, then adjust the valves, then check/set the timing. I like to advance mine a little bit more that the 5deg factory setting..like 8 or 10deg.
83 4x4, 3" Lift, 33" Buckshot Mudders
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Re: Loss of power - Help!!
[Re: Ashokan1]
#776850
01/06/07 03:20 AM
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Joined: Dec 2002
Posts: 90
Getting the Wheeling Fever
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There's lot to change like spark plugs,wires,a good tune-up,oil change etc...My 86 truck acted up after doing all that so I figured changing my IGNITOR BOX and that did the fix for my truck.I started collecting more for my other trucks...They are expensive from OEM...So far my truck is running fine as my daily drive...
88 4x4 22re
86 2wd 1-ton 22re
91 2wd 22re
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 Re: Loss of power - Help!!
[Re: Vonka]
#776851
01/06/07 06:43 PM
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Joined: Apr 2003
Posts: 51
OP
Getting the Wheeling Fever
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Ok let's see where to start...1989 22re 4x4 truck ran great and then just started having little to no power especially on hills.
Recent tuneup with new plugs and wires, oil change w/filter, air filter, induction service, tested vac lines and fuel pressure, new fuel filter and coil(6 months/3,000 miles ago)
Throws a code for the knock sensor which was replaced with a new OEM. KS cable to ECU tests OK, and ECU looks OK inside (no burns etc...)
Truck idles fine and runs good except for loss of power and fuel consumption seems high. Revs fine in thwe driveway with no load. Just no power under load.
Don't know where else to look.
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