1993 Toyota Pickup Running problem

Tiny
DUSYMAN1986
  • MEMBER
  • 1993 TOYOTA PICKUP
  • 2.4L
  • 4 CYL
  • 4WD
  • MANUAL
When my check engine light comes on on my 93 Toyota pick up four-wheel-drive 22r it runs like crap sometimes or loses half of its power. I've had every diagnostic test done to it and it reads no code stored to computer. When the light comes on and stays on it lose half of his power when it blinks it jerks real hard.
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Tuesday, October 7th, 2014 AT 9:03 AM

14 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
A blinking check engine light usually indicates a misfire. Yes that would cause a power loss. Have you checked the condition of the spark plugs, wires, distributor cap and rotor?
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Tuesday, October 7th, 2014 AT 5:29 PM
Tiny
DUSYMAN1986
  • MEMBER
Yes iv check them they are good an used but don't look to bad.
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Tuesday, October 7th, 2014 AT 5:54 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Okay, there is a misfire, but what is causing it. Have you checked the condition of the plug wires? Is there anything arcing related to the ignition system? Is the coil wire okay? Injectors? Catalytic converter?
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Wednesday, October 8th, 2014 AT 5:06 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
By the way, how many miles are on the engine?
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Wednesday, October 8th, 2014 AT 5:06 PM
Tiny
DUSYMAN1986
  • MEMBER
I havnt check the. Cadillac converter. It has 170000 miles
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Wednesday, October 8th, 2014 AT 5:09 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
If the engine was serviced on a regular basis, that isn't high miles for it. However, if it wasn't, there could be excessive wear inside. Check to make sure the catalytic converter is not plugging first. If it is good, may need to check injectors and engine timing and compression.
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Wednesday, October 8th, 2014 AT 5:17 PM
Tiny
DUSYMAN1986
  • MEMBER
Iv has new timing an injectors an new head about a year ago.
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Wednesday, October 8th, 2014 AT 5:19 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Since it runs good some of the time, I feel it is fuel related or one of the catalytic converters is starting to plug. It may be fine sometimes and partially plug others. Of, fuel pressure may be dropping.
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Wednesday, October 8th, 2014 AT 5:29 PM
Tiny
DUSYMAN1986
  • MEMBER
YA I'll check that. But it only messes up when the check engine light comes on. No other time. Seems to be worse after it warms up.
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Wednesday, October 8th, 2014 AT 5:31 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
If that light is coming on, there should be a code or codes. That concerns me. Do you have access to a real time scanner that can be viewed while the vehicle is driven?
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Thursday, October 9th, 2014 AT 5:25 PM
Tiny
DUSYMAN1986
  • MEMBER
No I don't man. An no it's reading no code.
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Thursday, October 9th, 2014 AT 5:31 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Something isn't right. I am starting to think there may be a problem with the ECM.
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Thursday, October 9th, 2014 AT 5:45 PM
Tiny
YOTA HUNT TRUCK
  • MEMBER
I am having the same problem does anyone have an answer to DUSYMAN1986 question or have you fixed yours man. I have a new engine and all in mine and would like to fix mane.
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Wednesday, January 11th, 2017 AT 7:09 PM
Tiny
KEN
  • ADMIN
Hey guys,

These trucks have a mechanical MAF that will fail and cause the problem you are describing. Please remove the MAF and check the air door, it should move freely.

Let me know what you find.

Best, Ken
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Sunday, January 15th, 2017 AT 4:47 PM

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