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Trevor Longstaffe Posted on Nov 15, 2013
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My red 202 has a flat spot when I have 1/4 throttle on, now she died completely on me seems to be a fuel issue, yet the wiring I her is absolutely terrible, could this be a cause of my issues aswell?

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Bill Boyd

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  • Cars & Trucks Master 53,816 Answers
  • Posted on Nov 16, 2013
Bill Boyd
Cars & Trucks Master
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Joined: Jan 04, 2013
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Flat spots come from fuel /air ratio problems and the Stromberg carby on the 2002 has a plunger accelerator pump that has a setting so that a steady stream of fuel is injected into the throat of the carby when accelerating. Check that the plunger is working all the way down and that the 2 ball valves in the pump are working and not held open with rubbish. Look down the throat and press down on the accelerator lever and you should see a steady squirt for the full throttle movement

5 Related Answers

A

Anonymous

  • Posted on Oct 09, 2008

SOURCE: 1979 320i - car dies when it "warms up"

coil? Ignition control Module ?

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milespeed

  • 599 Answers
  • Posted on Dec 16, 2008

SOURCE: throttle body in 2001 Passat

throttle body is located at intake manifold ..follow snorkle from air cleaner to where it attaches to motor ..looses hose and clean with carb cleaner there..open blades(throttle) to get behind entry good also..... fuel filter is located in tank and in line from fuel tank just in front of tank inline with fuel line...good luck

jakesan07

  • 4 Answers
  • Posted on Aug 13, 2009

SOURCE: Electronic Throttle Control

The ETC is located inline with the air intake hose. Take the air intake hose off, then take the ETC off. Go to advanced auto or autozone and get carb cleaner or throttle body cleaner. Give the ETC a good bath and put it back on that should fix the problem and save you $600 or more in repair. This is a typical problem with the ETC when you start to get high miles. Hope this helps it help me.

Lyle D. Rowh

  • 744 Answers
  • Posted on Mar 04, 2010

SOURCE: Acceleration Issues - Fuel Injection Problem?

A pressure test needs to be done to determine if the right amount of fuel is being delievered. Another thing that can happen is the TPS can be out of range, or even bad.

Anonymous

  • 1 Answer
  • Posted on Mar 11, 2010

SOURCE: Car starts, but won't stay running

My car starts up but then dies in just a few sec

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2010 Dodge Ram 1500 4.7 L V8 starts and runs fine. After a while, it stalls and dies. It will turn over but not start until after sitting for a while. It's getting worse.

Check for fuel pressure at the rail. Looking at those fuel trims it is trying to get more fuel into the engine but it looks like there isn't anything more for it to give.
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2002 chevy cavalier won't start has codes P0107 andP0122

code p 0107 refers to manifold absolute pressure (MAP) sensor/ barometric pressure (BARO) sensor--low input===causes wiring short to ground---map sensor--baro sensor---ECM
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Any fuel additives that work

My question is--- What Product that comes in a 16 oz
container & then diluted in 16 to 18 gallons of fuel,
would do much of anything?

So my answer is,there is nothing wrong with those
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So the answer is-- to properly diagnose the vehicles problems & try & return it, as close to new as built condition, as possible

You may have a Flat Spot in the TPS Sensor (throttle position sensor)
located on the throttle body. But that has to be tested

Also replacing the Oxygen Sensors closest to the engine,
every 80 to 100,000 miles, will give you better throttle response
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P0068 map/maf throttle position correlation

Hi there:Here's the printout from the diagnostic tool. Year: 2006Manufacturer: ChryslerMake: DodgeModel: DurangoEngine Type: V8, 4.7LTransmission: AutomaticTrim Level: SLTMileage: 127555 KMs
=== Stored Error Code(s) ===Error Code: P2074Possible Causes: Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Higher LoadError Code: P0068Possible Causes: MAP / MAF - Throttle Position Correlation
Freeze Frame Information:1. DTC for which Freeze Frame was Stored - P2074.2. Fuel System 1 Status - Closed Loop.3. Fuel System 2 Status - Closed Loop.4. Calculated LOAD Value - 74.51 percent.5. Engine Coolant Temp - 199.40 degrees F.6. Short Term Fuel Trim - Bank 1 - -3.91 percent.7. Long Term Fuel Trim - Bank 1 - -3.13 percent.8. Short Term Fuel Trim - Bank 2 - 0.78 percent.9. Long Term Fuel Trim - Bank 2 - -4.69 percent.10. Intake Manifold Absolute Pressure - 22.21 Inhg.11. Engine RPM - 2,404.00 Rpm.12. Vehicle Speed Sensor - 73.94 Mph.13. Ignition Timing Advance #1 Cylinder - 25.50 degrees.14. Intake Air Temperature - 64.40 defrees F.15. Absolute Throttle Position - 31.37 percent.16. Time Since Engine Start - 1212 Sec.17. Commanded EGR - 7.06 percent.18. EGR Error - 0.00 percent.19. Commanded Evaporative Purge - 62.35 percent.20. Fuel Level Input - 93.73 percent.21. Barometric Pressure - 26.35 Inhg.22. Control Module Voltage - 14.35 V.23. Absolute Load Value - 0.00 percent.24. Commanded Equivalence Ratio - 0.00.25. Relative Throttle Position - 0.00 percent.26. Ambient Air Temperature - -40.00 degrees F.
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Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
Thank you for using FixYa.
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The drivability issue you describe has a multitude of possible causes. The best advice I can give you is that you take/tow the vehicle to the local/nearest Hyundai Service Department and have it properly diagnosed. Possible causes:
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#2. Vacuum Leak(s)
#3. Faulty Throttle Position Sensor (TPS)
#4. Electrical (Wiring)
#5. Faulty Sensors (Crank Position Sensor, Cam Position Sensor, Idle Speed Control Actuator, Faulty Manifold Absolute Pressure Sensor, etc.)
#6. Contaminated Fuel
#7. Faulty Powertrain Control Module (PCM)
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depending on mileage, but possible tune-up could fix it. if already done then check ignition coil pack and ignition wires also spark plugs, check vacuum hoses for leaks or porous, last injectors clogged - use some techron fuel injector cleaner (wal-mart has them). Also get the throttle body and iac valve cleaned by throttle cleaner . Also this other possibilities are to be checked and confirmed.:---- Engine running rough or misfiring can be cause by the following:

1.Defective spark plugs
2.Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4.False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
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10. Throttle position sensor.
11. Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

--------- This should help.Keep updated.Thanks.Helpmech.
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Sounds like ur TPS switch (throttle positoning ) Have it checked for a dead spot
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