if you think you know anything

S

Specialist

New member
I've been having issues with my syclone #1963 i can only rev it to 3000 rpm at half throttle whenever i floor it it drops dramatically and stays around 2350 rpm its flashing code 22 but i replaced the tps and done a full tune up plugs wires cap rotor coil ect. when i take it on the road going up hill its murder loses everything my syclone is my baby and it went from the tazmanian devil to F*ck*n Barney could use some feed back
 
Don W.

Don W.

Stab it and steer it
Re: if you think you know anything

Start with fuel pressure and ignition. Until you know those are 100% correct you're shooting in the dark. IOW Ign module, bad ground, fuel pressure bad because of filter or the pump itself. Then look at MAP sensor, FPR. Check timing :2cents:
 
SY2932

SY2932

Administrator
Re: if you think you know anything

Don W. said:
Start with fuel pressure and ignition. Until you know those are 100% correct you're shooting in the dark. IOW Ign module, bad ground, fuel pressure bad because of filter or the pump itself. Then look at MAP sensor, FPR. Check timing :2cents:
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DITTO Did you check to see if the TPS was *actually* bad before you replaced it? It could be a bad connection or even a bad ECM. Replacing parts without confirming that they are bad only wastes time and money. We need to know more information about the problem before we can get the bottom of it. Did the truck run well until you did something or there was an event of some sort that caused it to run poorly? If you had data logging capability, this would be MUCH easier to figure out :2cents:...
 
S

Specialist

New member
Re: if you think you know anything

i haven't checked fuel pressure yet both fuel pumps work it has an adjustable fuel regulator that i do need to check im replacing the fuel filter tomorrow but i dont think it could be the ecm and if it is how do i check it im a diesel engine mechanic in the army so not much money tell me what info you need and ill provide
 
S

Specialist

New member
Re: if you think you know anything

far from stock but i do have a cat it has a fmic, adjustable fuel reg, ac delete, internal and external both work fine, kenne bell cold air, 10 in one chip, and full suspension its lowered with fiberglass rear springs and it has a 3 inch cat back exhaust thats spitting black carbon soot everywhere i bought the truck as is for 5 grand and drove it for a total of
 
S

Specialist

New member
Re: if you think you know anything

and the event that made everything go down hill i ran out of gas after that a rats nest of sh*t happened
 
C

Captain Morgan

Moderated User
Re: if you think you know anything

is the pump a newer Walbro unit? You could have gotten one of the now notorious bad ones and running out of gas could have triggered its failure. :2cents:
 
SY2455

SY2455

70's Veteran
Re: if you think you know anything

Specialist said:
i haven't checked fuel pressure yet both fuel pumps work it has an adjustable fuel regulator that i do need to check im replacing the fuel filter tomorrow but i dont think it could be the ecm and if it is how do i check it im a diesel engine mechanic in the army so not much money tell me what info you need and ill provide
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Both pumps may be running, but not pumping enough pressure or volume. You need to find out how much press it has. Hopefully you have at least 45lbs idle with vacuum line unplug and block. When My ECM went bad it did all kinds of strange stuff. Here the links

http://www.syty.net/forums/showthread.php?t=17390

and

http://www.syty.net/forums/showthread.php?t=17411
 
S

Specialist

New member
Re: if you think you know anything

you guys have been alot of help im gonna try the cat because my truck sounds muffled with no muffler i smell burning plastic on my passenger side and my bolts that hold my seat down get hot ass hell not to mention its -10 out and it melts the snow under my truck when parked it gets so hot i cant put my hand near it
 
sy#2716

sy#2716

SyTy 4 Life
Re: if you think you know anything

A couple things that will cause that is either running too rich. Or also running race gas (expecially leaded race gas) that kills cats quick.

I had something similar happen to my 95 z28 lt1 the cat was clogged from running too rich and would not rev over 3k. Then i pulled the cat busted the honeycomb out and she was like new.
 
S

Specialist

New member
Re: if you think you know anything

well called the shop cause im in the army dont have time to do it 475$ there cost for cat 300 dollars called parts store 181 for direct replacement cat realizing im a mechanic in the army and they trained me to do this and gave me the tools priceless but going out to start your truck and turning over nothing with the brand new part shitty it will be done tomorrow ill keep you posted
 
mcskibadee1

mcskibadee1

New member
Re: if you think you know anything

Specialist said:
well called the shop cause im in the army dont have time to do it 475$ there cost for cat 300 dollars called parts store 181 for direct replacement cat realizing im a mechanic in the army and they trained me to do this and gave me the tools priceless but going out to start your truck and turning over nothing with the brand new part shitty it will be done tomorrow ill keep you posted
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so what was the final verdict? my car blows black exhaust when floored and the turbo goes to the top and there is not much power. I am thinking it might need a new cat and wanted to know if that helped with yours. Mine gets hot as hell near the passenger door as well.
 
SY2455

SY2455

70's Veteran
Re: if you think you know anything

mcskibadee1 said:
so what was the final verdict? my car blows black exhaust when floored and the turbo goes to the top and there is not much power. I am thinking it might need a new cat and wanted to know if that helped with yours. Mine gets hot as hell near the passenger door as well.
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If it is blowing black exhaust, you may be burning really rich. To test the cat you would have to do a pressure test on it. But if you have over 50,000 miles on it you may want to replace it anyway. What do you mean Hot as hell?
 
mcskibadee1

mcskibadee1

New member
Re: if you think you know anything

SY2455 said:
If it is blowing black exhaust, you may be burning really rich. To test the cat you would have to do a pressure test on it. But if you have over 50,000 miles on it you may want to replace it anyway. What do you mean Hot as hell?
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if you are wearing socks without shoes as a passenger it is too hot to stand for a long time. It ha s100,000 miles on it by the way. Is replacing the cat a thing that I need to go to a syty specific shop or would any reputable muffler place be ok? Is there anything I should know before replacing it?
 
sly dvl

sly dvl

Ya, it's got a Turbo
Re: if you think you know anything

It won't be a cat issue if your turbo is "Running all the way to the top". Plugged cat means poor exhaust flow, which means poor turbo spooling.
 
mcskibadee1

mcskibadee1

New member
Re: if you think you know anything

SY2455 said:
Some of the people here will have a bolt in HP unit that you can just bolt in. Look here, Depending on where you live. What do you mean the turbo goes to the top?

http://www.syty.net/forums/forumdisplay.php?f=46
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I live in Los Angeles.the turbo winds up high and to the top of the gauge , it is not smooth at all.it is really slow off the line. what exactly does bolt in hp unit do? ^^^^^^^^^^yes , judging by the factory needle
 
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