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Guys ;
i drove my car last friday all fine today i started the car and its running rough on idle and if you drive it under load it will stumble and i lost engine power
my vettte has open air lid and flow master exhaust and there is no codes i did change the fuel filter last night and this morning it start it right up the it died after several times finally staid running but the same no power i can feel the engine shake under load still crapy ........i do have fuel coming out of the rail
what should be my next step a shop or can i do anything on my own
friday it was running perfect 5 days later like crap
Air, fuel, spark and compression. You need all of them in the right amount, at the right time. What is missing, or inadequate? Check the trouble shooting charts in your FSM. Otherwise I would start with checking the fuel pressure.
the problem was there before i change the filter it would start but not run wright then it wold not run at all i decided to change the filter i did make sure the filter is facing the right way the engine fired up after a couple of tries but still running sluggish 90,000 miles
From: Sacramento, CA Money can't buy happiness - but it's more comfortable to cry in a Corvette than a Yugo.
Originally Posted by CFI-EFI
Air, fuel, spark and compression. You need all of them in the right amount, at the right time. What is missing, or inadequate? Check the trouble shooting charts in your FSM. Otherwise I would start with checking the fuel pressure.
RACE ON!!!
A fuel pressure check is a good first place to start. If you have an 88, the open your bible, (FSM) to the book of "Driveability and Emmissions" page 6E3-1, and read from the letters of Paul to the Corinthians, i.e. "Section B - Symptoms".
So code "12" flashed 3 times, right? Then code "22" flashed... three times? What came after the third "22"? With the NEW information on the codes, skip my advice on checking the fuel pressure, first. Go straight to the FSM and follow the trouble shooting chart for code 22, and any other codes that followed the "22".
So code "12" flashed 3 times, right? Then code "22" flashed... three times? What came after the third "22"? With the NEW information on the codes, skip my advice on checking the fuel pressure, first. Go straight to the FSM and follow the trouble shooting chart for code 22, and any other codes that followed the "22".
RACE ON!!!
the only code i got was 22 no other i would need to by and fsm knowing this is my first problem with my car after almost 1 year
the only code i got was 22 no other i would need to by and fsm knowing this is my first problem with my car after almost 1 year
At the risk of repeating myself, "What came after the third "22"?".
If "need to by and fsm" means that you have to purchase a Factory Service Manual, than by all means, do. Make sure it is the FACTORY manual published by Helm Inc, as per the links both Mike_88Z51 and I provided. A generic manual, such as from Chilton, Haynes, or any others won't have the trouble shooting charts you are going to so badly need.
From: Sacramento, CA Money can't buy happiness - but it's more comfortable to cry in a Corvette than a Yugo.
Originally Posted by 8888vette
the only code i got was 22 no other i would need to by and fsm knowing this is my first problem with my car after almost 1 year
A code 22 is Throttle Position Sensor (TPS) - signal voltage low. You need to check for a defective TPS sensor or corrosion in the TPS circuit. It could be a simple loose wire giong into the TPS, some corrosion in the TPS connetors, or a loose TPS adjustment screw. You'll need a multi-meter to measure voltage in the 0-10v range and something to loosen the TPS sensor on the side of the throttle body.
As CFI-EFI says, having a Helms FSM would allow you to go directly to the Code 22 troubleshooting chart so you want to buy one as soon as possible. Sometmes they can be had used on eBay or the CF For Sale Forum at a significant savings. Agent 86 has PDF copies of many manual pages. He may have the chart you need in a downloadable file.