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1990 Toyota 4Runner SR5 3.0L MIL Lamp on
after rebuilding engine,code 52 sets as soon as vehicle has run a short [...] harness on sensor was replaced 1 year previous,looked [...] were fit slightly looser than speck to avoid heat scuffing which is common in this engine,so has slight piston noise,w...
FIX posted 6/17/1999
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Message Closed w/FIX
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Related Documents & Media 
| VIN | JT4VN36H4L |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 52 | knock sensor circuit open or shorted |
Message Closed w/FIX
Vehicle Data
1990 Toyota 4Runner SR5
| VIN | JT4VN36H4L |
| Engine | 3.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 52 | knock sensor circuit open or shorted |
Video