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Old 11-05-2014, 03:18 AM   #1 (permalink)
Fox
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Default 48.8 lifetime MPG after 150,000 miles.

Car seems to have a power issue pre 2200 rpm or so. What should I be checking in order of most common problem. I drive it slow doing the pedal to metal to 3k Roma then shift and downshift/regin down hills. I've grid charged balanced the pack and cleaned the egr plate, still bucks pretty bad in 1st gear. Thanks for assistance as I've read til my eyes bleed.
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Old 11-05-2014, 07:02 AM   #2 (permalink)
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Quote:
Originally Posted by Fox View Post
Car seems to have a power issue pre 2200 rpm or so. What should I be checking in order of most common problem. I drive it slow doing the pedal to metal to 3k Roma then shift and downshift/regin down hills. I've grid charged balanced the pack and cleaned the egr plate, still bucks pretty bad in 1st gear. Thanks for assistance as I've read til my eyes bleed.
When was the last time you replaced the spark plugs? Are they torqued to the proper spec? Maybe one of your o2 sensors are going bad, EGR itself going bad, or in rare cases, a clogged catalytic converter. I wouldn't even look at the cat until everything else is checked first though.
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Old 11-05-2014, 09:52 AM   #3 (permalink)
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Spark plugs 6 months ago. Car seems to run much better when it hasn't warmed up yet and takes forever to get to an autostop point because of it?
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Old 11-05-2014, 01:34 PM   #4 (permalink)
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My theory:
Pedal to the metal,(even to 3K) and high regen will eat the MPG.
Try driving like you had an egg on the gas pedal.

HTH
Willie
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Old 11-05-2014, 04:01 PM   #5 (permalink)
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Which is counter to what many claim on ecomodder and many other places. They say throttle opening = less pumping losses as long as you shift at 3k or below. I think I agree with you. As to how to test my oxygen sensor, I'm at a loss.
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Old 11-05-2014, 04:14 PM   #6 (permalink)
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Have you tried disconnecting the EGR valve, and driving it for a while?
I assume you mean bucking at 2200 rpm in 5th?

HTH
Willie
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01 MT "Little Red Rocket"
The first "TURBOCHARGED" Hybrid, Insight G1-(01/2003)@65K miles. RIP 334K
MaxIMA Battery (Serial #2), on 8/25/12 @ 301,000 miles
Another MaxIMA Battery, on 6/25/17 @ 399,252 miles
Use: 438,000 mi. @ 58.2 LMPG.



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Old 11-05-2014, 04:34 PM   #7 (permalink)
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the bucking is happening in all gears including 1st. If the engine is cold it runs fine.
Have not tried disconnecting it but that is good idea if that works does it mean EGR bad?
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Old 11-05-2014, 04:38 PM   #8 (permalink)
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Maybe. Is your temperature sensor behind the grill still functioning?
EGR functions with low throttle opening and low rpm.
Also check for vac. leaks, especially the hose going to the MAP sensor (The hose on the small pipe) drivers side behind the end of the engine.

HTH
Willie
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01 MT "Little Red Rocket"
The first "TURBOCHARGED" Hybrid, Insight G1-(01/2003)@65K miles. RIP 334K
MaxIMA Battery (Serial #2), on 8/25/12 @ 301,000 miles
Another MaxIMA Battery, on 6/25/17 @ 399,252 miles
Use: 438,000 mi. @ 58.2 LMPG.



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Last edited by Willie Williford; 11-05-2014 at 04:41 PM.
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Old 11-05-2014, 05:04 PM   #9 (permalink)
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Also, how long should the 2ndary starter take for it to bypass hybrid starting? if my HV battery is off it takes a good 7 to 10 seconds and then sometimes it just makes a bunch of clicking sounds possibly trying to start the car on the 3rd phase of this 21second to 30 second process(see my math?)
Not sure if this is suppose to happen or not?
How Would I test the Temp sensor?

Last edited by Fox; 11-05-2014 at 06:03 PM.
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Old 11-08-2014, 12:14 PM   #10 (permalink)
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Ended up helping tremendously by replacing my egr with accord 2001 egr valve! Yay. Now have to fix other quarks, like engine cutout at 30mph then autostop restarting after gear in, maybe it's good lol
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