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Location:
Brisbane
Registered:
June 2005
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 MZ20 running too rich?
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Mon, 27 June 2005 08:18
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Hey all!
My MZ20 is playin silly buggers. Only just got it a few weeks ago and its doing some curious things. Firstly, it starts ok when cold (takes a little bit of jollying along) but when you start it warm it burps and farts and runs on like 5 or 4 cylinders for about 10 seconds or so. That is i assume thats whats happening as its running all lumpy. Next, it is absolutely DEVOURING petrol, like ridiculous amounds and the exhaust smells like petrol. I think its running pretty rich. ANy ideas how to correct this? Also the oil is a bit overfull from the last owner who didnt have a clue, and i havent gotten around to an oil change, this may be the cause of the rough startup i spose. Any ideas??
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: MZ20 running too rich?
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Mon, 27 June 2005 08:37
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7MGE or 7MGTE?
Whats the L/100km like?
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Location:
Brisbane
Registered:
June 2005
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Re: MZ20 running too rich?
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Mon, 27 June 2005 08:41
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Im not real sure, but i put about 35 litres in it the other day and prolly did not much over 150k's before it was back down low again. I havent tested to see how long a tank lasts... It may be normal i spose, but it is very thirsty and the exhaust smells of petrol pretty bad. Also it seems to be bogging down a bit under acceleration.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: MZ20 running too rich?
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Mon, 27 June 2005 08:47
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Possible problems are bad spark, causing you to use more throttle.
Leaking injector, or leaking cold start injector.
Or bad o2 sensor.
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Location:
Brisbane
Registered:
June 2005
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Re: MZ20 running too rich?
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Mon, 27 June 2005 08:51
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So what would you suggest? Where can i find the o2 sensor? Should i try cleaning it or something? New plugs and leads i spose are also a good idea. Where can i get leads and a new o2 sensor for a 7mgte??
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: MZ20 running too rich?
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Mon, 27 June 2005 09:00
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Could always go down to a spare parts store and try there eh? Or even Toyota themselves.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: MZ20 running too rich?
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Mon, 27 June 2005 09:01
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o2 sensor wont help running rich at idle.
If you haven't had the injectors cleaned in the last few years, remove them, and get them cleaned.
That would be step 1 for me.
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Location:
Brisbane
Registered:
June 2005
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Re: MZ20 running too rich?
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Mon, 27 June 2005 09:11
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ok, that sounds like a plan. It dosent seem to be running rich at idle, i rekon the problem with starting will be something to do with too much oil in the engine. Where could i get injectors cleaned? I guess a mechanic of some description... Sorry if these seem like dumb questions, but im pretty new to this.
Cheers for the help too guys!
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