Choppy at WOT.
#1
Choppy at WOT.
So car felt like it was losing power when i got on it and got a little choppy at WOT when i was on it.
Cleaned out my MAF, ( it was pretty dirty ). And decided to switch out plugs because it has been a bit.
Now it has the power it alwes had before it was acting up. but it is still choppy at WOT when i am on it. My low and mid feel great with no issues. The only codes i am throwing are P0401 EGR Flow insufficient, and P0243 wastgate malfunction.
I do not have a Boost solenoid. never came with the car and that is why i an getting the P0243 code. ( side note if any one has a spare lying around plz get a hold of me lol ).
The P0401 EGR code is new. I just felt around the EGR valve it feels like the vac lines are there and with it idling good and low and mid range i dont have any reason to thin otherwise. So i guessing it is clogged and i need to remove it and clean it out. And or by a new one.
Would my EGR valve throwing a code be interfering with my car at upper on WOT? Or is this a separate problem?
The car has a Walbro Fuel pump, Full hard piping ( injen ), Big FMIC, And full 3in exost with a test pipe. I also have Zetronix mentoring with Wideband O2. I boost is not dropping and my AFR is around 10.6-10.8 upper end WOT. Car was running good about 2 or 3 weeks ago.
Cleaned out my MAF, ( it was pretty dirty ). And decided to switch out plugs because it has been a bit.
Now it has the power it alwes had before it was acting up. but it is still choppy at WOT when i am on it. My low and mid feel great with no issues. The only codes i am throwing are P0401 EGR Flow insufficient, and P0243 wastgate malfunction.
I do not have a Boost solenoid. never came with the car and that is why i an getting the P0243 code. ( side note if any one has a spare lying around plz get a hold of me lol ).
The P0401 EGR code is new. I just felt around the EGR valve it feels like the vac lines are there and with it idling good and low and mid range i dont have any reason to thin otherwise. So i guessing it is clogged and i need to remove it and clean it out. And or by a new one.
Would my EGR valve throwing a code be interfering with my car at upper on WOT? Or is this a separate problem?
The car has a Walbro Fuel pump, Full hard piping ( injen ), Big FMIC, And full 3in exost with a test pipe. I also have Zetronix mentoring with Wideband O2. I boost is not dropping and my AFR is around 10.6-10.8 upper end WOT. Car was running good about 2 or 3 weeks ago.
#5
Evolved Member
iTrader: (7)
Have you checked to make sure the WG is functioning properly?
How are you controlling boost? MBC? EBC? Since you have no boost solenoid I assume MBC. What PSI are you seeing throughout the pull?
Have you logged in evoscan?
I dont think the EGR would cause the upper end breakup but it could.
I assume you are on pump gas?
First thinng you need to do is log in evoscan. Thats probably where your fix will be. Next I would check for boost leaks. There are tons of things that could cause this,
How are you controlling boost? MBC? EBC? Since you have no boost solenoid I assume MBC. What PSI are you seeing throughout the pull?
Have you logged in evoscan?
I dont think the EGR would cause the upper end breakup but it could.
I assume you are on pump gas?
First thinng you need to do is log in evoscan. Thats probably where your fix will be. Next I would check for boost leaks. There are tons of things that could cause this,
#7
So EGR code I fixed. ( damn split vac line lol ). And when I say it it breaking apart at WOT. It it rough throw the rpm range.
I have a MBC, and boost is set at 26. I just switched out plugs. But I went from a heat rang colder to a stock plug. I am also thinking it is a ignition problum. I am not throwing. Miss fire code but I can be sure it is not missing tell I log it. I going to order the cabe tonight.
I have a MBC, and boost is set at 26. I just switched out plugs. But I went from a heat rang colder to a stock plug. I am also thinking it is a ignition problum. I am not throwing. Miss fire code but I can be sure it is not missing tell I log it. I going to order the cabe tonight.
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#9
Evolved Member
iTrader: (19)
How many miles on your coils and wires? I have less mods but at wot I too had choppy, ignition break up like symptoms. I replaced my coils, wires and plugs with low miles oem ones (new plugs) and I was good to go.
I also used dielectric grease inside each plug boot...
Just a suggestion. GL tracking down your problem(s)!!
I also used dielectric grease inside each plug boot...
Just a suggestion. GL tracking down your problem(s)!!
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