Home/GMC/Jimmy Typhoon/GMC Jimmy Typhoon (1992-1993)/Repair manual/Testing & Diagnostics/Waveform (injector) - 4.3l Tbi Non-Turbo VIN [z]
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Waveform (injector) - 4.3l Tbi Non-Turbo VIN [z] GMC Jimmy Typhoon

Testing & Diagnostics 2 illustrations ~263 words

INTRODUCTION

Note. For a tutorial on how to interpret injector waveforms, see WAVEFORMS - INJECTOR PATTERN TUTORIAL found in the GENERAL/GENERAL INFORMATION area. NOTE: To see a list of the other year/make/models these waveform(s) apply to, go to the top of the article.

SOURCE OF WAVEFORMS

The Source Vehicle Information Table describes the vehicle the waveform came from. It is not needed for interpretation and is included for reference only.

Each waveform contains a note that links it to its related source table.

ApplicationSpecification
Year1992
MakeChevrolet
ModelS10 Blazer
Engine4.3L V6 Dual TBI VIN [Z]
Ignition TypeDistributor w/Magnetic Pickup
Trans TypeAutomatic Transmission
Mileage1,550
VIN CodeZ - N

SOURCE VEHICLE INFORMATION

  1. (Scheme 1)for the waveform.
  2. See the «WAVEFORM DATA TABLE #1»(/gmc/jimmy-typhoon/1992-1993/remont/testing-diagnostics/#waveform-injector-43l-tbi-non-turbo-vin-z) for supporting data.

The Waveform Data Table is listed first. This table contains supporting information about the waveform illustration and should be used in conjunction with it.

The waveform illustration follows after the table.

Note. See the SOURCE VEHICLE INFORMATION TABLE in this article for a description of the vehicle the waveform came from.

ApplicationSpecification
Pattern TypeVoltage
Voltage Base20 Volts
Time Base2 Milliseconds
Oscilloscope UsedTektronix 222A
Pattern RepresentsSingle Injector
Injector Driver TypeCurrent Controlled
Side of Circuit That Driver SwitchesGround
Injector On-Time Shown.92 mS
ConditionsUnknown
Cursors On-ScreenNo
Cursors Are MeasuringN/A
StatusKnown Good Pattern

WAVEFORM DATA

Injector Waveform (Voltage) - Known Good - Injector #1. Scheme 1

Scheme 1: Injector Waveform (Voltage) - Known Good - Injector #1
  1. (Scheme 2)for the waveform.
  2. See the «WAVEFORM DATA TABLE #2»(/gmc/jimmy-typhoon/1992-1993/remont/testing-diagnostics/#waveform-injector-43l-tbi-non-turbo-vin-z) for supporting data.

The Waveform Data Table is listed first. This table contains supporting information about the waveform illustration and should be used in conjunction with it.

The waveform illustration follows after the table.

Note. See the SOURCE VEHICLE INFORMATION TABLE in this article for a description of the vehicle the waveform came from.

ApplicationSpecification
Pattern TypeVoltage
Voltage Base20 Volts
Time Base2 Milliseconds
Oscilloscope UsedTektronix 222A
Pattern RepresentsSingle Injector
Injector Driver TypeCurrent Controlled
Side of Circuit That Driver SwitchesGround
Injector On-Time Shown.87 mS
ConditionsUnknown
Cursors On-ScreenNo
Cursors Are MeasuringN/A
StatusKnown Good Pattern

WAVEFORM DATA

Injector Waveform (Voltage) - Known Good - Injector #2. Scheme 2

Scheme 2: Injector Waveform (Voltage) - Known Good - Injector #2