# Helping others with MPG issue

**URL:** <https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708>\
**Category:** Articles / Teg Tips\
**Created:** [June 14, 2024, 3:55am UTC](https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708 "2024-06-14T03:55:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![BreachSpawnz](https://forum.g2ic.com/user_avatar/forum.g2ic.com/breachspawnz/32/11668_2.png) [@BreachSpawnz](https://forum.g2ic.com/u/BreachSpawnz)\
**Post date:** [June 14, 2024, 3:55am UTC](https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708/1 "2024-06-14T03:55:12Z")

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So if you were getting terrible gas mileage like I was . Be sure to check the following

1. Fuel pressure regulator an fuel filter
2. Spark Plugs an Gap, should be .44 I believe
3. 02 sensor, they do go bad their 30+ year old cars haha
4. If your car is Automatic check egr passages.
5. My Case a clogged catalytic converter , take it off super easy an hold it to the sky an try to look through it. If you can see through it just fine no problem if you can’t I just hollowed mine out 😂.
6. Tire pressure
7. PCV
8. Clogged return line
9. Air filter or on stock da intake tubes they have a secondary filter on top 4, 8mm bolts I believe. Found that mine was absolutely terrible.
10. Distributor Cap an rotor.

Basic maintenance stuff makes these cars run forever , an over 30 years you have to expect something small to happen.

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**Author:** ![NFULFX](https://forum.g2ic.com/user_avatar/forum.g2ic.com/nfulfx/32/5_2.png) [@NFULFX](https://forum.g2ic.com/u/NFULFX)\
**Post date:** [July 2, 2024, 12:03pm UTC](https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708/2 "2024-07-02T12:03:06Z")

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The “secondary” air filter was only on the 92-93 models. Unfortunately there’s no replacement. I was thinking about just capping that off, or using a foam filter cut-to-size.

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**Author:** ![Eleventhhour](https://forum.g2ic.com/user_avatar/forum.g2ic.com/eleventhhour/32/13822_2.png) [@Eleventhhour](https://forum.g2ic.com/u/Eleventhhour)\
**Post date:** [September 7, 2024, 8:47pm UTC](https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708/3 "2024-09-07T20:47:11Z")

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Sorry for the thread bump but, there’s a secondary air filter on 93 models? Is it possible to delete or bypass?

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**Author:** ![NFULFX](https://forum.g2ic.com/user_avatar/forum.g2ic.com/nfulfx/32/5_2.png) [@NFULFX](https://forum.g2ic.com/u/NFULFX)\
**Post date:** [September 9, 2024, 11:53pm UTC](https://forum.g2ic.com/t/helping-others-with-mpg-issue/103708/4 "2024-09-09T23:53:36Z")

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It’s on the stock air box. It’s about a 2 x 3 inch rectangle held in by two bolts. Hard to miss it.