3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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93 Sputters under load

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Old May 4, 2015 | 11:45 AM
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SavFD3s's Avatar
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93 Sputters under load

Hello I have a 1993 FD and after a small drive it has developed a sputter under load that I cannot trace at this time. I can rev the motor as high as I like but once boost/load starts to develop the engine sputters. Is this the infamous sputter where I need to clean my injectors and get a PFC? I also allowed the vehicle to warm up and the issue still remained. I vacuum tested and replaced 2 hoses but what else should I look in to? Could a clogged CAT do this as I do hear a rattle in that area.
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Old May 4, 2015 | 01:30 PM
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Could be lots of things:

Bad plugs
Bad coil(s)
Bad plug wires
Dirty injectors
Running too rich
Bad fuel filter
etc etc
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Old May 4, 2015 | 06:25 PM
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Originally Posted by HcivicX7
Hello I have a 1993 FD and after a small drive it has developed a sputter under load that I cannot trace at this time. I can rev the motor as high as I like but once boost/load starts to develop the engine sputters. Is this the infamous sputter where I need to clean my injectors and get a PFC? I also allowed the vehicle to warm up and the issue still remained. I vacuum tested and replaced 2 hoses but what else should I look in to? Could a clogged CAT do this as I do hear a rattle in that area.
check integrity or connectivity of the vac hose leading to your map sensor
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