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1990 Chevrolet Cavalier 2.2L Poor Idle Quality, Stall
Textbook MAP measured at ecm using DVOM koeo=5V koer=1.5V Using 3 different scanners(all otc 4000)with several different cartridges there is weird MAP voltage(all other serial data is textbook) koeo=1V koer=5V (scanner map data is opposite of DVOM data!!!!)
FIX posted 10/21/1998
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Message Closed
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| VIN | [No VIN Available] |
| Engine | 2.2 L / 4 cyl |
| Emissions | p4 us,federal |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | Idle, Intermittently |
Trouble Codes
| 33 | High MAP voltage/low Vacuum |
Message Closed
Vehicle Data
1990 Chevrolet Cavalier
| VIN | [No VIN Available] |
| Engine | 2.2 L / 4 cyl |
| Emissions | p4 us,federal |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | Idle, Intermittently |
Trouble Codes
| 33 | High MAP voltage/low Vacuum |
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