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#1 |
I've made a post!
Drives: Daihatsu Sirion 1.0 Join Date: Aug 2011
Location: Poland
Posts: 3
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Hello guys, this is my 1st post on yarisworld
![]() The car is cheap Toyota ![]() The problem is it consumes almost 8l/100km of gas (30 mpg), normal consumption should be 5 to 6l/100km. Symptoms: * long term fuel trim = -20..-30% on idle which isn't normal *abnormally black spark plugs (can attach photos, all 3 of them black equally) * the software reads no diagnostic trouble codes. I use Chinese elm327 Blutetooth + laptop. * both oxygen sensors seem ok _____________ 1. idle, warm: http://s30.postimg.org/9n6n2cq3h/02a_idle.jpg ![]() 2. car stopped, engine warm: ![]() 3. as above: ![]() 4. driving, engine warm: ![]() ______ Any suggestions? I'm thinking of MAP sensor, crankshaft, camshaft position sensors ![]() Will appreciate any help ![]() BR, Z. |
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#2 |
I've made a post!
Drives: Daihatsu Sirion 1.0 Join Date: Aug 2011
Location: Poland
Posts: 3
|
![]()
Hello,
The car is cheap Toyota ![]() The problem is it consumes almost 8l/100km. Symptoms: long term fuel trim = -20..-30% on idle which isn't normal abnormally black spark plugs (all 3 of them) the software reads no diagnostic trouble codes both oxygen sensors seem ok The engine starts and works (idle, driving) normally. _____________ 1. idle, warm: http://s30.postimg.org/9n6n2cq3h/02a_idle.jpg ![]() 2. car stopped, engine warm: ![]() 3. as above: ![]() 4. driving, engine warm: ![]() ______ Will appreciate any help. BR, Z. |
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#3 |
![]() ![]() ![]() Drives: 2007 red Yaris HB AT Join Date: Dec 2013
Location: southeast USA
Posts: 197
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Sounds like it runs too rich.
I would check vacuum leaks, exhaust leaks, clean/replace MAF sensor. Pozdrowienia. |
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#4 |
![]() ![]() ![]() ![]() Drives: 2010 yaris 3 door hatch Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 511
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What's the highest temp that the coolant gets to? 65*C ? If it is, then that's too cool.
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#5 |
![]() Drives: Yaris Verso 1.3 2000 automatic Join Date: Nov 2015
Location: Poland
Posts: 33
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Did you get to the bottom of your problem?
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