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Increase mpg
Topic Started: Jul 9 2018, 06:33 AM (140 Views)
HammerDown
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Is there a list of all the top mpg mods on the forum? What about a front air dam? Or pushing the bottom of the front bumper out? Best tire pressure? Etc. Has anyone compiled a list? Thanks.
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geogonfa
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Here is some good info: :type
http://geometroforum.com/topic/2743106/1/
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evmetro


I would consider the top item as having the engine tuned and running properly. There are very few of these cars that meet that standard in their old age, so this can be a "mod" in itself.
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HammerDown
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evmetro
Jul 9 2018, 09:33 AM
I would consider the top item as having the engine tuned and running properly. There are very few of these cars that meet that standard in their old age, so this can be a "mod" in itself.
Well, recently replaced plugs, wires,cap,rotor and pcv. Today I noticed the ses light was on so I had it scanned at autozone. There were 3 codes; po400-eve system performance, po335 crank position sensor malfunction and po455-evap system gross leak detected(.080").

Should I just replace the crank sensor and egr valve or is there another cause.? I did find a vacumm line coming from the egr valve(the round Denso thing?) that had rubbed through on the air cleaner so I replaced the bad vacuum line.


Thanks for any advice.
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freegeo
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Check the wiring to the crank position sensor.

Have you cleared the codes since you replaced the vacuum line for the egr?
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HammerDown
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freegeo
Jul 10 2018, 03:41 AM
Check the wiring to the crank position sensor.

Have you cleared the codes since you replaced the vacuum line for the egr?
Wiring is good to the crank sensor, I just had it off when I did the crank/cam seals. I have not cleared the codes. To clear the codes do I just disconnect the battery?
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freegeo
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If you had the sensor unplugged and turned the key on while working on it or cranked the engine over, you made it set a code.

Clear the codes and seeing if any of them come back.

I believe it is the dome fuse you can pull, but let me verify that. Disconnecting the battery will do the same thing.

It is the dome fuse that supplies voltage to the memory circuit of the pcm.

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Edited by freegeo, Jul 10 2018, 10:48 AM.
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