Question about 1993 Toyota Corolla

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I have a 94 ae101 with a 4afe engine.. i'm getting code 52? please help

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Have a flag code 52 how do I fix it? the car uses OBD 1 that is my flag code. Saturn uses separate codes for trans.

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94 camry 4 cyl. 4 door knock sensor malfuction, code 52. Where is the knock sensor located?

It screws into side of engine block somewhere and has one wire to it. Buy the part at parts store and ask them to show you location chart.

Dec 19, 2014 | Cars & Trucks

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Wrong-89 chevy 4x4 not 2002 odb1 code please explain what is is and where it is I can not locate on the web or in the book code #52 thanks

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Nov 22, 2013 | 2002 Chevrolet Silverado 2500HD

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Engine oil tempature cirtcut

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Nov 22, 2013 | 1989 Chevrolet Silverado 2500

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Speedometer works sporadically- shows code 52 ECM replaced the vss speed sensor

what year is your car cause on a 95 and later models the code for speed sensor is w/scan tool is p0720 and by check engine light flashing is 1102 and from years 93 and 94 is 14 so need to know year to help you. but it sound like a circuit short if you just added any thing to your car can be the problem too. if wiring was not done right need to re check if added anything new.

Aug 07, 2010 | 1996 Nissan Maxima

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Need to replace oil pan

If yo ucan see all the bolts on the bottom of the pan, it will be as easy as changing your oil. Make sure you get a torque wrench for the install though so you don't strip the bolts out, and just follow the directions with the gasket.


Fig. 1: Exploded view of the oil pan and related components for the 1990-94 1.6L engine-2.2L engine is similar


Fig. 2: Exploded view of the oil pan and related components for the 1.8L engine

Make sure all old sealer is removed from the bolts prior to installation. Installing a bolt coated with old sealer could result in cracking of the bolt holes.
  1. On 1990-94 323 1.6L (B6E) and 1994 Protege 1.8L (BPD) engines, install the integrated stiffener to the engine block and transaxle. Tighten the bolts to 38 ft. lbs. (52 Nm).
  2. 1990-94 Protege 1.8L (BPE) and 1994 MX3 1.8L (BPD) engines, install the transverse member. Tighten the bolts to 93 ft. lbs. (1 Nm).
  3. Install the front exhaust pipe bracket, if equipped. Install the front exhaust pipe, using new gaskets. Tighten the exhaust manifold flange nuts to 34 ft. lbs. (46 Nm).
  4. Install the oil pan drain plug using a new gasket. Tighten the drain plug to 30 ft. lbs. (41 Nm).
  5. Install the engine undercover and lower the vehicle.
  6. Fill the engine with the proper type and quantity of oil.
  7. Connect the negative battery cable. Start the engine and bring to normal operating temperature. Check for leaks.

Hope helped with this (remember rated this help). Good luck.

Nov 18, 2009 | 1990 Mazda MX-6

3 Answers


have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.

Nov 24, 2008 | 2002 Toyota Sienna

2 Answers

Electronic control module: error in code 52

I will be glad toassist you.

DTC 52 on a 93 Corolla indicates a problem with the "Knock Sensor" or its circuitry. This sensor is basically a piezoelectric crystal inside a metal housing, that detects "knock" or "predetonation" in the engine, and transmits that info re the "knock" back to the ECU. Most likely, replacement of the sensor, or a repair of the wiring harness will cure your problem, if you engine is running fine, and not making any strange sounds. I hope this answers your question. If you have any others, please feel free to comment back to me. Have agreat day!

Oct 17, 2008 | 1993 Toyota Corolla

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