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Subject: "Sputter, low VAC and low RPM at idle after turbo setup." Previous topic | Next topic
brokenrodguyJan-30-05 03:54 PM
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#85409, "Sputter, low VAC and low RPM at idle after turbo setup."
Jan-30-05 04:24 PM by brokenrodguy

          

I just bolted on my turbo and 2 days later my car sputters and im running 8 pounds of VAC. Rpm as dropped under 500. It seems like it wants to just give up. Shortly after I noticed I got a CEL which I will read at autozone tomorrow. The car hasnt seen WOT with boost yet. The guage is showing no boost now which could be just the guage. I checked all vac lines. it seems like its either a pad spark plug and I blew my motor. Fule filter has been changed a few months ago. A/F guage shows lean over 4k so I let off the boost. Any input ?

  

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fly1Jan-30-05 05:14 PM
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#85414, "RE: Sputter, low VAC and low RPM at idle after turbo setup."
In response to Reply # 0


          

Doublecheck all your vac lines, again. If something is blown, i.e. piston or ringlands, you'll probably see oil and or smoke from the engine. Also, maybe do a compression test to eliminate the later.

___________
Kon C

"Sometimes, a man has to do what a man has to do."

  

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brokenrodguyJan-31-05 03:43 AM
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#85421, "RE: Sputter, low VAC and low RPM at idle after turbo setup."
In response to Reply # 1


          

ok I scanned my codes and im running too lean. I hope this didnt affect the motor too much yet but im doing a comp test in a few hours. I want to make sure my FMU is hook up right cause I only saw instructions for the super. Middle port back to take and side one from stock FMU. does that sounds right ? I also thought it could be a blown o2. I already swapped out my sensor after install because my gasket makers distroyed it. Thanks to a fellow 2g member I got hooked up with my new one. After I hooked it up and boosted more I smelled the gaskets and it couldve blown another one. Would think cause low idle ? My A/F ratio guage lights up half way so its like 7 leds are on. Anyone got any ideas ?

  

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reliant_turboJan-31-05 12:09 PM
Member since Jul 28th 2003
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#85439, "RE: Sputter, low VAC and low RPM at idle after turbo setup."
In response to Reply # 2


          

Bad fuel pump, or clogged filter might cause those symptoms. You have any gauge on the FP?

Brian

Brian Bucar

www.squirrelpf.com - Dedicated to making cars perform.

Racing is an addiction that can only be cured by poverty.

88 Plymouth Reliant K 2.5L Intercooled Turbo - 5-Speed
89 Dodge Aries K 2.5L N/A Beater
88 Plymouth Reliant V6 Project

Currently helping ForceFed420A finish his custom 97 Eclipse Megasquirt Turbo project.

  

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brokenrodguyJan-31-05 03:19 PM
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#85453, "RE: Sputter, low VAC and low RPM at idle after turbo setup."
In response to Reply # 3


          

it ended up being the o2 sensor again. It was dumping fuel to cause it to sputter. All is well down and im running 18-20 psi vac. The guage i got with the kit was messed up. Anyway thanks to extreme97nt for being a good guy and hooking me up once more. Its nice to know that there help and info when you need it so I would like to thank the whole 2g community.

  

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