nano Posted November 19, 2015 Share Posted November 19, 2015 Hi, the aem jauge in the car says 10.5 at idle and Im tryin to source the problem . Intake air temperature sensor, coolant sensor are new and the power supply is 4,90V With ignition on for these sensors.02 sensor is New. Stock fuel system and injectors. Zisco intake mani.td04 turbo With ext wastegate.The problem was already there before installing zisco intake mani and the sensor has been changed With no success.What can cause this rich idle? Can it be a faulty aem wideband? And also the car doesnt smell fuel. Thanks Quote Link to post Share on other sites
5T4R7ET N/A Posted November 20, 2015 Share Posted November 20, 2015 (edited) On a cold start you will hit the 10's then it will slowly lean out to 14.3-9 when fully warm. The car would stink of petrol if the afr was 10 when warm. Does the afr not change when your driving? If not you might reqiure a new AEM o2 sensor (bosch)I think there is a way of testing the aem sensor. Expose to air and it will go 20 or blanks, put in a petrol soaked cloth and it should go to 10. Edited November 20, 2015 by 5T4R7ET N/A Quote Link to post Share on other sites
patman Posted November 20, 2015 Share Posted November 20, 2015 When off boost what does the aem wideband say then you should have the --- reading that's when you take your foot completely of the acceleration pedal, how was it fitted 36-38inches away from turbo and the sensor tilted up think it's 10 degrees in the centre pipe Quote Link to post Share on other sites
nano Posted November 20, 2015 Author Share Posted November 20, 2015 I used to get 13,7 afr on cold start then 15 when warm. Now I dont use cold start. And all the pipes off the throttle body are blocked off. The idle screw is tightened maximum. I checked the tps and it works good. So on idle I have 10,5 and around 15 when crusing. I ll tell you what is the afr when on boost.My friend says its normal côz I changed parts like turbo intercooler air filer etc, and that I can correct it With my emanage ultimate. I m a bit confused and dont know if its normal or not. Quote Link to post Share on other sites
5T4R7ET N/A Posted November 20, 2015 Share Posted November 20, 2015 The idle afr stays 10 even when car is warm?Calibrate the tps again and see if that helps. Quote Link to post Share on other sites
nano Posted November 22, 2015 Author Share Posted November 22, 2015 I checked continuity of the tps and it Is good I think. Middle and bottom pin With 0,5mm feeler thers is continuity, and With 0,7mm no continuity. Afr are between 10,5 and 11. Warm or cold. I dont have cold start. The pipes off the throttle body are blocked off. Quote Link to post Share on other sites
5T4R7ET N/A Posted November 22, 2015 Share Posted November 22, 2015 Like this yeh?http://www.toyotagtturbo.com/forums/showwiki.php?title=TPS+throttle+position+sensor+set+up+procedureIf that all good and the car runs fine ( check spark plugs) it could be the AFR gauge oxygen sensor Quote Link to post Share on other sites
5e colin Posted November 22, 2015 Share Posted November 22, 2015 fucked ecu temp sensor mate thats my first thought when that stops working it over feuls al the time worth checking it out Quote Link to post Share on other sites
nano Posted November 22, 2015 Author Share Posted November 22, 2015 Coolant sensor is New and oem. Part number is 89422-35010 for ep91 89422-20010 for ep82. My connector is green and sensor is grey. I have the ep91 model. Quote Link to post Share on other sites
nano Posted November 22, 2015 Author Share Posted November 22, 2015 Yep starlet n/a I did like the procedure. And plugs are new bkr7e-11. Can it be something like alternator belt not well tightened and a weak battery? Or a faulty injector? Quote Link to post Share on other sites
5T4R7ET N/A Posted November 22, 2015 Share Posted November 22, 2015 What condition are the spark plugs??Black, brown or white? Quote Link to post Share on other sites
nano Posted November 22, 2015 Author Share Posted November 22, 2015 I ll check how they are. And I know the 02 sensor is hand tightened.may be it s an air leak. Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 Today I checked the dipstick and it was smelling petrol. I removed the oil and the bolt sump was very greasy. What causes this? The car starts no problem and doesnt overheat Quote Link to post Share on other sites
5e colin Posted November 24, 2015 Share Posted November 24, 2015 (edited) injector stuck open ?? listen to them with a metal rod on the injector and other end on your ear with engine running they should al sound the same and rip out your plugs fire up a pic of them 1 will be discolored ( i hope ) maybie map sensor faulty / stuck map might be seeing boost while in vacuum so over feuling Edited November 24, 2015 by 5e colin Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 (edited) Hi colin what your sayin is touching each injector With a metal bar and see if i hear them clicking ? And as for the plugs ône should be different due to petrol? Edited November 24, 2015 by nano Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 And what if I removed fuel rail With injectors and turn ignition on and see if ône is open? Quote Link to post Share on other sites
5e colin Posted November 24, 2015 Share Posted November 24, 2015 Hi colin what your sayin is touching each injector With a metal bar and see if i hear them clicking ?And as for the plugs ône should be different due to petrol? yes And what if I removed fuel rail With injectors and turn ignition on and see if ône is open? no injectors will pop out deu to pressure but if you made a flat piece bar with 4 holes in to seat the injectors so you can bolt the feul rail to the plate/bar then it will work you will need 4 ml/cl cups to see Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 The spark plugs are all white... I removed the fuel rail, holding the 4th injectors With hand and my friend turn ignition on. And it sprayed fuel With no engine on Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 Is it possible the aem read rich and it s actually not? Quote Link to post Share on other sites
5T4R7ET N/A Posted November 24, 2015 Share Posted November 24, 2015 If the plugs are white then i think you need a new wideband sensor, or need to tighten it as you said it was hand tightened. Then you might get the right reading and see if it is really the sensor at fault Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 Hi mate, How to put pics up? I ll show you the plugs. Both 02 sensors are well screwed now, no change. I Just turned ignition on after 2hours the car sat the jauge does not dysplay the --- but 17. I remembered i did that before and I could see the --- Just after 5 minutes. Quote Link to post Share on other sites
5e colin Posted November 24, 2015 Share Posted November 24, 2015 how many wiles on the plugs white is usually to the lean side ( depends ) on how engine was turned of just after blast or after long tik over makes diference in color Quote Link to post Share on other sites
nano Posted November 24, 2015 Author Share Posted November 24, 2015 (edited) Around 300 km, normal driving,because I put a new metal headgasket oem thickness by zisco and new coolant.And if your asking why I put New hg, its because I installed new seal valves and I wanted to check if everything is in good condition.Yeah I said I have stock fuel system,the fuel pump is actually walbro which was installed à long With the engine 3 or 4 years ago. Edited November 24, 2015 by nano Quote Link to post Share on other sites
5T4R7ET N/A Posted November 25, 2015 Share Posted November 25, 2015 I think your aem wideband sensor is faulty, double check all the wiring just in case. Earths and connections Quote Link to post Share on other sites
nano Posted November 25, 2015 Author Share Posted November 25, 2015 Hi all, I checked wires on ecu, earth etc. Its perfect I have 15 at idle.However even With no ignition on, there is low Light on the lamps, a very very Light Light. Means thats the lamps are getting low voltage. Is this due to ground cable on the batery? Quote Link to post Share on other sites
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