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1999 Pontiac Grand Prix GTP 3.8L Poor Fuel Economy
hello to all i'm looking for some help on this one. this is my personal vehicle.the problem is that on my scanner (snap on modis) their is a pid that say's ignition mode [yes]. according to the scanner this pid should have [no]. as far as i know when pid say's... Summary posted 2/28/2007![]() 8 Replies Received (View Replies)8 Replies Received (Hide Replies)
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Message Closed w/Summary
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| VIN | 1G2WR5210X |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Fuel Economy |
| Occurs | Not Applicable |

8 Replies Received
8 Replies Received
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