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Infiniti g37x wont start because its been sitting for 8 months-possible throttle body issues or wire disconnection

Posted by Lindsay Munz on

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Anonymous

  • 702 Answers

SOURCE: wont start

Make sure that you're getting spark. A very common thing on these engines are coils going bad. If you can verify spark, check to make sure you have an injector pulse. As you rotate the engine, look inside of the throttle body and make sure that you see fuel pulsing into the engine. You can still have good pressure but you don't have an injector pulse, the fuel still cant get into the engine. You can use a test light as well to test for an injector pulse. One wire going to the injector will have constant power and the other will blink when the engie is rolled over. Does it start if you spray starting fluid into the throttle body? If it does, it's a fuel delivery problem. Again be sure you have spark from coil to distributor and plugs. You can remove the ignition module and take it to NAPA and they have a module tester. Have them test the module several times not just once. This will eliminate the possibilites of an intermitted problem. Let me know how it does. [email protected]

Posted on Aug 21, 2008

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milespeed

  • 599 Answers

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

Posted on Dec 16, 2008

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Anonymous

  • 140 Answers

SOURCE: 1988 nissan pickup engine rotates but does'nt start.

it sounds like the injectors are not opening up man.. replace the injectores and this should fix your problem..good luck keith....

Posted on Mar 21, 2009

Richard Scordino

  • 6982 Answers

SOURCE: 89 jeep wrangler wont start

Sounds like the drainback valve inside the pump is shot...try just turning the key on and waiting a minute and see if it starts that way.

Posted on Jul 22, 2009

Anonymous

  • 31 Answers

SOURCE: 1999 Infiniti 30 wont start.

Sounds like it went into theft mode when you unhooked the battery and tried to start it multiple times. Most cars have some sort of SKIM key which is a key with a computer chip in it that is programmed to a module in the car. If this programming is lost by a battery diosconnect it usually needs to be reprogrammmed by a dealer. The reason it won't start is because the theft mode probably has the fuel or spark disabled as a theft deterrent.

Posted on Aug 24, 2009

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Infiniti g37x wont start because its been sitting for 8 months-possible throttle body issues or wire disconnectionstart because its been sitting for 8 months-possible throttle body issues


The engine harnesses need to be thoroughly inspected, mice love to chew them to pieces for nest material and to sharpen there little teeth...

Jul 27, 2017 | Infiniti Cars & Trucks

1 Answer

2000 dodge intrepid wont stay running


Have fuel pressure tested in both situations. I've seen fuel pumps quit once they get heated up, then when they cool, pump again. Perhaps try WD40 sprayed in to throttle body inlet when no start, and that will tell you if it's a fuel delivery problem. Just remove air cleaner intake hose at front of throttle body, and open throttle and spray for a second or 2 then try to start. If it fires up and runs for a second or 2, then it's a lack of fuel issue.

Jun 06, 2013 | 1999 Dodge Intrepid

1 Answer

Where is the carb on a jeep grand cherokee 1993 4.0 liter


There is no carburetor on any of the 6 cylinder or 8 cylinder Jeep Grand Cherokees. They have Fuel Injection and a throttle body which looks like a carburetor scaled down.

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Instructions on how to remove and replace the throttle body follow:

Throttle Body REMOVAL & INSTALLATION
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hoses from upper bonnet, unfasten the retaining clips and remove the upper bonnet assembly.
  3. Remove the lower bonnet retaining bolts and lower bonnet.
  4. Remove the throttle cable and the return spring.
  5. Disengage the wire harness connector from the injector.
  6. Disengage the wire harness connector from the WOT switch, ISA motor and TPS.
  7. Disconnect the fuel supply and return lines from the throttle body.
  8. Tag and disengage the vacuum hoses from the throttle body assembly.
  9. Disengage the potentiometer wire connector.
  10. Loosen throttle body retaining bolts and remove throttle body assembly from the intake manifold. To install:
  11. Clean the intake manifold and throttle body mating surfaces of old gasket material.
  12. Install a new gasket and the throttle body assembly. Tighten the mounting bolts to 16 ft. lbs. (21 Nm).
  13. Engage the potentiometer wire connector.
  14. Engage the vacuum hoses to the throttle body.
  15. Engage the fuel lines to the throttle body.
  16. Engage the WOT switch, ISA motor, TPS, and injector electrical connections.
  17. Install the return spring and throttle cable.
  18. Install the lower bonnet and fasten the retainers.
  19. Install the upper bonnet assembly, retaining clips and vacuum hoses.
  20. Connect the negative battery cable.
  21. Start the vehicle and check for fuel leaks. Fig. 1: Exploded view of the throttle body and related components 86745g41.gif
prev.gif next.gif

Aug 17, 2010 | 1993 Jeep Grand Cherokee

1 Answer

88 Suburban too much fuel to start


which wires, to the injectors ? You don't wanna disconnect the Idle air control or the TPS...while cranking, the TPS if improperly installed can be an issue, but the IAC if stuck closed, wont let the car idle, neither will the EGR if it is hung open. also diconnect the map sensor, if it improves, replace it

Mar 19, 2009 | 1988 Chevrolet Suburban

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