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.
| Application | Specification |
|---|---|
| Year | 1992 |
| Make | Chevrolet |
| Model | S10 Blazer |
| Engine | 4.3L V6 Dual TBI VIN [Z] |
| Ignition Type | Distributor w/Magnetic Pickup |
| Trans Type | Automatic Transmission |
| Mileage | 1,550 |
| VIN Code | Z - N |
SOURCE VEHICLE INFORMATION
Quick Hyperlinks
- (Scheme 134)for the waveform.
- See the «WAVEFORM DATA TABLE #1»(/gmc/sonoma-syclone/1991-1992/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.
| Application | Specification |
|---|---|
| Pattern Type | Voltage |
| Voltage Base | 20 Volts |
| Time Base | 2 Milliseconds |
| Oscilloscope Used | Tektronix 222A |
| Pattern Represents | Single Injector |
| Injector Driver Type | Current Controlled |
| Side of Circuit That Driver Switches | Ground |
| Injector On-Time Shown | .92 mS |
| Conditions | Unknown |
| Cursors On-Screen | No |
| Cursors Are Measuring | N/A |
| Status | Known Good Pattern |
WAVEFORM DATA
Injector Waveform (Voltage) - Known Good - Injector #1. Scheme 134
- (Scheme 135)for the waveform.
- See the «WAVEFORM DATA TABLE #2»(/gmc/sonoma-syclone/1991-1992/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.
| Application | Specification |
|---|---|
| Pattern Type | Voltage |
| Voltage Base | 20 Volts |
| Time Base | 2 Milliseconds |
| Oscilloscope Used | Tektronix 222A |
| Pattern Represents | Single Injector |
| Injector Driver Type | Current Controlled |
| Side of Circuit That Driver Switches | Ground |
| Injector On-Time Shown | .87 mS |
| Conditions | Unknown |
| Cursors On-Screen | No |
| Cursors Are Measuring | N/A |
| Status | Known Good Pattern |
WAVEFORM DATA
