Corolla; engine stumbles and wont rev up on anything over ~20% throttle
01-29-2009, 12:14 PM
#11
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Join Date: Dec 2005
Location: Casper Wyo.
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Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
'93 to '97 Rollas (USDM) do not have MAF just MAPs.
I had similar problems in my '96 Rolla and I sprayed some wire dryer.
And it cleared up the issue.
BTW when was the last time you changed your sparkplugs and fuel filter?
I had similar problems in my '96 Rolla and I sprayed some wire dryer.
And it cleared up the issue.
BTW when was the last time you changed your sparkplugs and fuel filter?
01-29-2009, 12:34 PM
#12
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Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by 92CXyD
'93 to '97 Rollas (USDM) do not have MAF just MAPs.
01-29-2009, 12:41 PM
#13
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Location: Casper Wyo.
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Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by Joseph Davis
Wierd, an ex had a 91 and it was a MAF car. I just ASSumed everything USDM and Toyota was MAF.
01-29-2009, 03:50 PM
#14
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Join Date: Sep 2007
Posts: 1,305
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
the 4afe is MAP the 4age is MAF, almost everything toyota is MAP except their turbo engines 7mgte, 1j, 2j ect except the 4efte and 3sgte are MAP
01-29-2009, 03:59 PM
#15
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Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by t_cel_t
the 4afe is MAP the 4age is MAF, almost everything toyota is MAP except their turbo engines 7mgte, 1j, 2j ect except the 4efte and 3sgte are MAP
01-29-2009, 04:24 PM
#16
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Join Date: Sep 2006
Posts: 413
Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
Originally Posted by t_cel_t
take the dizzy cap off and wipe the water out of it, my rolla pulls this ---- all the time
I will try what you guys suggest when i get home tonight, at school right now. I changed the plugs to some of the normal NGK or whatever (i had the plugs with 4 connectors at the bottom) and with the new plugs (from my vitara D) the car wasn't able to climb up the ramp in the parking structure. Now it stumbles at lower throttle with these plugs. Maybe coil going bad?
I don't think the car has ever seen a fuel filter change. But i did convert it to manual last saturday (when it stumbled i thought it was the tranny getting stuck in between shifts) plus it gets much better gas mileage with a stick.
01-29-2009, 07:15 PM
#20
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Join Date: Apr 2008
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Re: Corolla; engine stumbles and wont rev up on anything over ~20% throttle
No toyota expert, but could be wet ignition. Just pull the cap and spray everything in there with WD-40, then put the cap back on and try it. If it only runs like ---- when warmed up, O2 sensor could be bad. I've cleaned them with brake parts cleaner and compressed air. If it's bad can't hurt to try.
