Car issues again (Page 5/9)
Monkeybean007 APR 05, 09:29 PM

quote
Originally posted by phonedawgz:

fuel pressure



I can check fuel pump, I already did fuel filter and it is running rich and burning through gas so idk If it would have an issue with that?
Mike in Sydney APR 05, 10:39 PM

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It's running super rich though and is burning through gas like crazy, so I don't believe it's getting starved of fuel




Out of curiosity, have you checked the fuel injectors? Could it be possible that one or more are dumping lots of fuel on acceleration causing the cylinder(s) to drowned out? How's your air filter?

I'm not sure if reading the spark plugs on a fuel injected engine is similar to that on a carburetted engine but if so, I'd take it for a vigorous run and then check the plugs. Are they sooty? If so, sounds like too much fuel or not enough air. When I rebuilt the cars on my KZ650, I had a high speed stumble and then it would smooth out and accelerate. It used a lot of fuel - way more than it should. Reading the plugs showed that the a couple of cylinders were running way too rich and that meant fiddling with the main jet and the carb needles to get rid of the problem.

(BTW, on my KZ650, when I removed the air filter element, it lets more air in making the mixture leaner making the problem better but not solving it.)

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Mike in Sydney

[This message has been edited by Mike in Sydney (edited 04-05-2020).]

Monkeybean007 APR 05, 10:42 PM

quote
Originally posted by Mike in Sydney:
Out of curiosity. have you checked the fuel injectors? Could it be possible that one or more are dumping lots of fuel on acceleration causing the cylinder(s) to drowned out?

I'm not sure if reading the spark plugs on a fuel injected engine is similar to that on a carburetted engine but if so I'd take it for a run and check the plugs. Are they sooty? If so, sounds like too much fuel or not enough air. When I rebuilt the cars on my KZ650, I had a high speed stumble and then it would smooth out and accelerate. It used a lot of fuel - way more than it should. Reading the plugs showed that the a couple of cylinders were running way too rich and that meant fiddling with the main jet and the cab needles to get rid of the problem.




I have not checked the injectors yet that was going to be my tomorrow project 😂 and my plugs and wires are all brand new so no issues there, and I made sure they are working correctly. And the issue is through full acceleration it's choppy and slow and then it'll have a push you back in your seat moment and then it'll get choppy again.
Monkeybean007 APR 05, 10:54 PM


Also don't know if this would help but whenever I start the car it spews this out, cats gonna and it's still doing it?
Mike in Sydney APR 05, 11:01 PM
Is that water, fuel, or oil?

I'd pull the plugs on the trunk side and see if they are fouled with soot. If they are then, it may be a fuel injection issue.

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Mike in Sydney

Monkeybean007 APR 05, 11:04 PM

quote
Originally posted by Mike in Sydney:

Is that water, fuel, or oil?

I'd pull the plugs on the trunk side and see if they are fouled with soot. If they are then, it may be a fuel injection issue.




I'm 90% certain it's water, and I'll check those and the injectors tomorrow and let you guys know what I find, also I really appreciate the help with this, wouldn't be able to do it on my own😂
Mike in Sydney APR 05, 11:05 PM
Look at this:

https://www.google.com/sear...oTpE9zYz7sPjP2ziAY34

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Mike in Sydney

Patrick APR 05, 11:48 PM

quote
Originally posted by phonedawgz:

fuel pressure




quote
Originally posted by Monkeybean007:

I can check fuel pump, I already did fuel filter and it is running rich and burning through gas so idk If it would have an issue with that?



Checking fuel pressure isn't just done while the engine is running. After the engine is turned off, the fuel pressure should remain stable for quite awhile before it slowly drops. If it drops immediately, you'll know you have leaky injectors or some other related issue.

Mike in Sydney APR 06, 01:45 AM

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I'm 90% certain it's water,



If it's water, chances are it's condensation . Does it happen every time the car is started or only after it's been sitting for a while and the car is cold? If it happens every time the car is started whether hot or cold then it could be serious. If only when it's cold, I'd guess it is condensation from the atmosphere

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Mike in Sydney

Monkeybean007 APR 06, 01:52 AM

quote
Originally posted by Mike in Sydney:


If it's water, chances are it's condensation . Does it happen every time the car is started or only after it's been sitting for a while and the car is cold? If it happens every time the car is started whether hot or cold then it could be serious. If only when it's cold, I'd guess it is condensation from the atmosphere




Every time car is started