22re engine surges?!?! - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 04-10-2008, 12:02 AM
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Arrow 22re engine surges?!?!

i have a 1993 toyota truck w/ the 4cyl 22re engine, and reciently the engine began to "surge" more than usual and it will keep doing that for the rest of the day, especially when i press the brakes or clutch, it almost stalls. its never gotten this bad, i dont know how to fix it, but i think it has something to do with coolant levels for some reason. any idieas?
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#2 Old 04-10-2008, 12:13 AM
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Check your idle. If it is too high, it will cause the surging when the brake is pressed. I had the same problem; my high idle was from a sticking dashpot. If you search previous threads for surging idle you will find more information.
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#3 Old 04-10-2008, 12:50 AM
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i allready tried adjusting idle, but it still dosent help, it makes it worse!
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#4 Old 04-13-2008, 01:29 AM
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What is your idle speed currently set at? It MUST be below 950 RPM's or the computer goes into "fuel deceleration cut" mode, and the idle will fluctuate.

Also, a misadjusted TPS will cause a varying idle.


http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml
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#5 Old 04-13-2008, 10:11 AM
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it was 950 but the tps was causing the engine to surge. he idle screw is set at the lowest idle possible but it still idles now at about 2100rpm.
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#6 Old 04-13-2008, 05:54 PM
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To see if the TPS is working correctly jump the two terminals TE1 and E1 (I think?) and if your idle goes down then it is NOT the TPS.

1991 Toyota 22re 5spd 2wd shortbed, reg cab - SOLD

1983 Tercel 4wd 5spd Wagon 263k miles
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#7 Old 04-15-2008, 09:20 PM
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I have a '93 pickup that had the same symtoms as your's. At first the surging only occured when I depressed the brakes. Once it warmed up it quit. At that time it wasn't to annoying. Eventually, the surging became constant and the engine would start to overheat. I checked everything...Brake booster, vacuum leaks, electrical. Finally, I took it to the dealership for diagnostics and it came back as the Idle Air Control Valve. The dealership wanted $500.00 to replace the part. I paid the diagnostics fee and replaced it myself...took about 30 minutes to replace. To buy the part from the dealership would be around $225.00 I ordered it online from Advanced Auto for $109.00 and had it delivered to the local store...no shipping fees. The valve is mounted on the bottom of the Throttle Body with 4 phillips head screws. I had to remove the TB to remove the IAC valve. Very easy fix. Hope this helps.

Last edited by '93TOYPU; 04-15-2008 at 09:21 PM.
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