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Old 02-01-2012, 04:00 PM   #1
diablo7772
 
Drives: VVTI 1.0 W reg
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Exclamation Help Required VVTI 1.0 W reg

Hello Yaris owners,

My dad owns a yaris 1.0 VVTI on a W reg. 131K on clock

The car has a hole in the exhaust just after the last Lamba sensor, well kind of 4 holes.

I have changed the sump on it last night and left the silicon to dry for over night+ new oil filter, plugs, new air filter + cleaned the maf.

To change the sump, the exhaust had to be taken off and the flywheel cover plate had to be taken off + the out put lamba sensor disconnected.

When i started the car the Hot engine light went on and then straight to cold after about 3 secs.

This evening starting the car it felt slugish and the revs are all messed up.

When i put the foot down on the floor it kind of gradually goes up till the top.

When i took it for a drive it took me ages to accelerate from about 4 mph to 12 in first. Second gear was same as first. As when i put it in third the revs dropped and when i put the foot down it didn't even want to go but only kept at idling and i was loosing speed.

If any one have had this problem or anything similar can you please let me know what i have to change.

The car is on 131k and it never had a new clutch fitted.

Thank you very much

Last edited by diablo7772; 02-01-2012 at 04:14 PM. Reason: Added info
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Old 02-01-2012, 04:11 PM   #2
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Did you plug the maf back in? I know it's kinda obvious...
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Old 02-01-2012, 04:15 PM   #3
diablo7772
 
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Yeah the maf is plugged in and i just took all the plugs off checked them, took the maf out to have a look, took the neg off the bat and held the brake pedal for 10secs to reset ecu.

I will record a video tomorrow :(
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Old 02-01-2012, 04:22 PM   #4
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Quote:
Originally Posted by diablo7772 View Post
Yeah the maf is plugged in and i just took all the plugs off checked them, took the maf out to have a look, took the neg off the bat and held the brake pedal for 10secs to reset ecu.

I will record a video tomorrow :(
how did you clean the maf?
I guess you can unplug it and see if the car acts any different.
Do you have anything to read OBD2 data?
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Old 02-01-2012, 04:30 PM   #5
diablo7772
 
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I used some WD40 and then just soft cloth. I will do that in a sec!

Yeah i have a OBD2 reader.
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Old 02-01-2012, 04:35 PM   #6
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Originally Posted by diablo7772 View Post
I used some WD40 and then just soft cloth. I will do that in a sec!

Yeah i have a OBD2 reader.
Did you spray WD-40 on the maf wires?
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Old 02-01-2012, 04:36 PM   #7
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Just took of the maf and had a go in the car it has helped the problem a lot but it has put it in limp mode so limited to 3.3k revs.

I will take it off and just dry it :) see if that helps unless the WD has damaged it.
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Old 02-01-2012, 04:37 PM   #8
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The oil was only sprayed on the sensor pin.
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Old 02-01-2012, 04:39 PM   #9
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Quote:
Originally Posted by diablo7772 View Post
Just took of the maf and had a go in the car it has helped the problem a lot but it has put it in limp mode so limited to 3.3k revs.

I will take it off and just dry it :) see if that helps unless the WD has damaged it.
WD40 is a lubricant...it will stay in the wires forever unless you clean it off. Spray it with some electronic cleaner (or a specialized MAF cleaning spray). Some people use a non-residue carb cleaner, but many say it's too aggressive.
I suppose alcohol would work too.
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Old 02-01-2012, 04:41 PM   #10
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Quote:
Originally Posted by diablo7772 View Post
The oil was only sprayed on the sensor pin.
what is a sensor pin...the blobby looking thing on the side of the sensor? I presume your sensor look the same as on my 1.5...
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Old 02-01-2012, 04:57 PM   #11
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yeah, i will have to get some electric cleaner.

Cheers
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Old 02-01-2012, 05:23 PM   #12
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good luck.
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