Corolla; engine stumbles and wont rev up on anything over ~20% throttle
01-31-2009, 03:14 AM
#51
1.0 BAR
Join Date: Aug 2005
Posts: 339
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Check the tps sensor output and the map sensor. Might be that the baro compensation has gone awry. That or the o2 has lot its mind. Obviously its a closed loop high authority sensor issue.
Did some checkin around this is what a freind came up with, and hes on the right track. Your cold start enrichment seems fine and once it warms up something gest fucked up. You couuld always disconnect the temp sensor to the ecu so that its always in cold mode lol.
Did some checkin around this is what a freind came up with, and hes on the right track. Your cold start enrichment seems fine and once it warms up something gest fucked up. You couuld always disconnect the temp sensor to the ecu so that its always in cold mode lol.
01-31-2009, 03:20 AM
#52
1.0 BAR
Thread Starter
Join Date: Sep 2006
Posts: 413
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by TTC
Check the tps sensor output and the map sensor. Might be that the baro compensation has gone awry. That or the o2 has lot its mind. Obviously its a closed loop high authority sensor issue.
Did some checkin around this is what a freind came up with, and hes on the right track. Your cold start enrichment seems fine and once it warms up something gest fucked up. You couuld always disconnect the temp sensor to the ecu so that its always in cold mode lol.
Did some checkin around this is what a freind came up with, and hes on the right track. Your cold start enrichment seems fine and once it warms up something gest fucked up. You couuld always disconnect the temp sensor to the ecu so that its always in cold mode lol.
01-31-2009, 03:40 AM
#53
1.0 BAR
Join Date: Aug 2005
Posts: 339
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Yea try that , its gotta be something with a sensor and the ecu. ---- i wonder if your ECU ---- the bed. Ill call my buddy tommorow, hes the bst automotive electrician I know. Maybe he will have an answer for you.
01-31-2009, 03:55 AM
#54
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Thread Starter
Join Date: Sep 2006
Posts: 413
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
unplugging the temp sensor at the back of the block didn't help. If the ecu is toast, i doubt it would run at all. I'm thinking it may be a mechanical issue since i basically checked all of the electronics.
I had a new throttle body with a new tps so we can root that one out as well.
keep me posted i would hate to have to get a diff car.
I had a new throttle body with a new tps so we can root that one out as well.
keep me posted i would hate to have to get a diff car.
01-31-2009, 10:39 PM
#55
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Thread Starter
Join Date: Sep 2006
Posts: 413
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
I'm removing the thermostat, maybe it will give me more drivability out of the car before it starts running stupid.
But here's some shots of the car. I tried to go for the JDM look.
The stainless is covering holes in the bumper, not all aesthetics.
This car is an abomination on wheels but i really don't care as long it gets me where i need to go (which it isn't doing atm)
I hope this recruits more help, this car is definitely worthy to be on the street. To help motivate you guys I will put honda-tech stickers all over it if I get it running right.
But here's some shots of the car. I tried to go for the JDM look.
The stainless is covering holes in the bumper, not all aesthetics.
This car is an abomination on wheels but i really don't care as long it gets me where i need to go (which it isn't doing atm)
I hope this recruits more help, this car is definitely worthy to be on the street. To help motivate you guys I will put honda-tech stickers all over it if I get it running right.
01-31-2009, 11:22 PM
#58
0.0 BAR
Join Date: Apr 2008
Posts: 0
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by enikolayev
.....i know. i said there was none when we bought the car >.>
o2 sensor reads:
cold: .00-.47 v
warm: .10-.58
and it constantly fluctuates
o2 sensor reads:
cold: .00-.47 v
warm: .10-.58
and it constantly fluctuates
02-01-2009, 12:24 AM
#59
1.5 BAR
Join Date: Oct 2005
Posts: 1,490
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
it dose sound like a launch control shizz when on the gass its like a rev limiter and it back fires up there then revs higher to the real rev limiter after you ease up on the gas
02-01-2009, 12:28 AM
#60
1.0 BAR
Thread Starter
Join Date: Sep 2006
Posts: 413
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by TTC
WTF are you removing the thermostat ? To keep it cold... thats a terrible idea.
