HAVE 99 1.5 ECHO MANUAL LACKING POWER ON ACCELRATION HAVE CHECKED FUEL PUMP ,FILTER,INJECTORS , PLUGS, OIL CONTROL VALVE ,AIRFLOW /MAP SENSOR ,ENGINE SCAN NO CODES ,CHANGED FUEL , CAR JUST DOESNT WANT TO ACCERATER , WILL REV OUT AT SLOW ACCELL BUT FAST ACCELL WONT . ANY IDEAS PLEASE !!!!! GETTIN NO WHERE REGAURDS FROM SCRATING HEAD!!
Country: AustraliaMake: ToyotaModel: EchoYear: 1999Engine: 1.5
Welcome to Justanswer, My name isXXXXX am here to help.If your sure everything was good you have checked then I suspect you have an issue with backpressure from a clogged catalytic convertor. I would have a backpressure test done or for a quick test you can do now pull the O2 sensor out from in front of the catalytic convertor if this makes any improvement than you know the cat is bad and will need to be replaced. ______________________________________________________________________________I hope you found my answer helpful, please click on the GREEN ACCEPT button above for my answer. This is necessary for me to be paid for my work and so that I can get credit for assisting you. Your question will not close, and you will still have the opportunity to follow-up if needed. Leaving a bonus and positive feedback is not required, but doing so is certainly appreciated!If you have additional questions, please keep in mind that I do not know what you already know or don't know, or with what you need help, unless you tell me. Please consider that I am answering the question or question that is posted in your posting based upon my reading of your post and sometimes misunderstandings can occur. If I did not answer the question you thought you were asking, please respond with the specific question you wanted answered.Also remember, sometimes the news is not what we want it to be and can be expensive and disapponting, but that is not the fault of the person answering the question, so please be courteous.There can also be a delay between my answers because I may be helping other customers or taking a break.You can always request me through my profile at http://www.justanswer.com/car/expert-automotivedoctor/ beginning your question with “Snapontech"
sorry forgot to tell tou we haved removed exhaust from front of cat made no differance!!
Ok than it has to be the timing. Must be a notch off you will need to have the timing fixed in order to have it working like it should. Had one of these just the other day.
its not belt driven its chain drive.
Yes what happens is the tensioners inside will get worn off and can cause it to get out of time causing the exact problem your having word for word. Just was hoping it was more simple but its not. ThanksDanny
wouldnt it be noisy though?
Most of the time they never make noise they just cause the timing to be off when they get worn out. If your fuel spark and air is good which you have indicated then its the cause because you need all of these to be inline in order to run the car properly.Danny
wouldnt the engine have some noise , if tensioner was worn that would mean that chain was loose enough to move or are u saying that it hasnt moved just not linnig up with timming marks because of slack in tensioner ?
It will come and go when the tensioners get worn out if your sure everything else is good then I assure you there is a problem here. What will happen is it will just not keep enough tension on the chain but will not make any noise in turn it will cause the vehicle to not have any power at all. I diagnosed this same issue recently it was very difficult because of the symptoms but since I have experienced it now its very simple to see.Danny
so u relaise thats a big job & expensive part to replace, to remove tensioner i wouldnt like to do all that and not fix! any quick checks to confirm?
I would do a leak down test you can set the engine at TDC then check cylinder 1 if the timing is off it will have leaking in the cylinder but if the tensoner is worn and only happening when running it will be difficult but its the first thing I would do. Thats what I do everytime to make sure.Danny
well ok ile try hope it works !!!!!!
Let me know if you have any other issues. But I am certain we have a timing problem here. Please take a moment to kindly press the green ACCEPT button. Thanks in advance Danny
Automotive Degree Shop Experience