Question about 1987 Cadillac DeVille

1 Answer

What controlls the throttle bodys; its getting fuel all the way to the injectors but the injectors want open,if you straight wire them they will open.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,190 Answers

Check fuses the ECM (engine control module )supplies a ground to fire the injectors

Posted on Aug 31, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get to try the service completely Free afterwhich it costs $6 per call and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to replace the fuel injector for a 2008 chrysler pt cruiser?


To remove a fuel injector or injectors you must remove the fuel supply rail that sits over them. Here is how you do that for both engine options, Turbo and non Turbo..

Removal & Installation

Except Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release fuel system pressure.
  2. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
  3. Remove the negative battery cable.
  4. Remove the engine cover or throttle control shield if equipped.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  5. Disconnect fuel supply tube from rail.
  6. Remove the Intake Manifold, refer to the Engine section.
  7. Disconnect electrical connectors from fuel injectors.
  8. Remove bolts holding fuel rail.
  9. Remove the fuel rail and injectors.
  10. Remove the injectors from the fuel rail.
To install:
  1. Install injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  4. Attach electrical connectors to fuel injectors.
  5. Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings in the Fuel Delivery section
  6. Install Intake Manifold, refer to the Engine section.
  7. Install the engine cover or throttle control shield if equipped.
  8. Install the negative battery cable.
  9. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose. Tighten air inlet tube clamps to 20-30 inch lbs. (2-4 Nm).

Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Disconnect the throttle body inlet hose and remove from throttle body.
  4. Disconnect the purge hose from the throttle body.
  5. Unlock and disconnect the electrical connection at the throttle body.
  6. Remove the throttle control shield .
  7. Remove the throttle and speed control cables from the throttle body.
  8. Remove the cables from the throttle body bracket.
  9. Unlock and disconnect the MAP sensor electrical connector.
  10. Remove the vacuum lines from the rear of the intake manifold.
  11. Remove the 5 bolts from the front of the intake manifold.
  12. Remove the 2 bolts from the rear of the intake manifold.
  13. Remove the intake manifold. Cover the lower intake manifold openings.
  14. Drain the Coolant system.
  15. Move the upper radiator hose clamp, so that the hose can be rotated up and out of the way.
  16. Remove the 2 small hoses from the thermostat housing.
  17. Remove the 2 bolts from the thermostat housing and rotate the assembly up and out of the way.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  18. Disconnect the fuel line from the fuel rail.
  19. Unlock and disconnect the electrical connectors from the fuel injectors.
  20. Remove the wiring harness from the fuel rail.
  21. Remove the 2 bolts from the fuel rail.
  22. Remove the fuel rail and injectors from the intake manifold.
To install:
  1. Install the fuel injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place.
  4. Install the 2 bolts to the fuel rail. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  5. Install the wiring harness to the fuel rail.
  6. Connect and lock the electrical connectors to the fuel injectors.
  7. Connect the fuel line to the fuel rail.
  8. Rotate the assembly back into place and install the 2 bolts to the thermostat housing tighten to 110 inch lbs. (12.5 Nm).
  9. Move the upper radiator house clamp back into place.
  10. Install the 2 small hoses to the thermostat housing.
  11. Fill the Coolant system.
  12. Install the intake manifold.
  13. Install the 2 bolts to the rear of the intake manifold tighten to 250 inch lbs. (28 Nm).
  14. Install the 5 bolts to the front of the intake manifold and tighten to 250 inch lbs. (28 Nm).
  15. Install the vacuum lines to the rear of the intake manifold.
  16. Connect and lock the MAP sensor electrical connector.
  17. Install the cables to the throttle body bracket.
  18. Install the throttle and speed control cables to the throttle body.
  19. Install the throttle control shield.
  20. Connect and lock the electrical connections at the throttle body.
  21. Connect the purge hose to the throttle body.
  22. Connect the throttle body inlet hose to the throttle body and tighten clamps to 20-30 inch lbs. (2-4 Nm).
  23. Connect the negative battery cable.
  24. Use the DRB® scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.

Mar 02, 2017 | Chrysler Cars & Trucks

1 Answer

How to replace the fuel injector on a 2008 chrysler pt cruiser


Removal & Installation

Except Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release fuel system pressure.
  2. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
  3. Remove the negative battery cable.
  4. Remove the engine cover or throttle control shield if equipped.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  5. Disconnect fuel supply tube from rail.
  6. Remove the Intake Manifold, refer to the Engine section.
  7. Disconnect electrical connectors from fuel injectors.
  8. Remove bolts holding fuel rail.
  9. Remove the fuel rail and injectors.
  10. Remove the injectors from the fuel rail.
To install:
  1. Install injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  4. Attach electrical connectors to fuel injectors.
  5. Connect fuel supply tube to fuel rail. Refer to Quick Connect Fittings in the Fuel Delivery section
  6. Install Intake Manifold, refer to the Engine section.
  7. Install the engine cover or throttle control shield if equipped.
  8. Install the negative battery cable.
  9. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose. Tighten air inlet tube clamps to 20-30 inch lbs. (2-4 Nm).

Turbocharged Models

WARNING Release fuel system pressure before servicing fuel system components. Service vehicles in well ventilated areas and avoid ignition sources. Never smoke while servicing the vehicle. This may result in personal injury or *****.
  1. Release the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Disconnect the throttle body inlet hose and remove from throttle body.
  4. Disconnect the purge hose from the throttle body.
  5. Unlock and disconnect the electrical connection at the throttle body.
  6. Remove the throttle control shield .
  7. Remove the throttle and speed control cables from the throttle body.
  8. Remove the cables from the throttle body bracket.
  9. Unlock and disconnect the MAP sensor electrical connector.
  10. Remove the vacuum lines from the rear of the intake manifold.
  11. Remove the 5 bolts from the front of the intake manifold.
  12. Remove the 2 bolts from the rear of the intake manifold.
  13. Remove the intake manifold. Cover the lower intake manifold openings.
  14. Drain the Coolant system.
  15. Move the upper radiator hose clamp, so that the hose can be rotated up and out of the way.
  16. Remove the 2 small hoses from the thermostat housing.
  17. Remove the 2 bolts from the thermostat housing and rotate the assembly up and out of the way.
    NOTE Wrap shop towels around hose to catch any gasoline spillage.
  18. Disconnect the fuel line from the fuel rail.
  19. Unlock and disconnect the electrical connectors from the fuel injectors.
  20. Remove the wiring harness from the fuel rail.
  21. Remove the 2 bolts from the fuel rail.
  22. Remove the fuel rail and injectors from the intake manifold.
To install:
  1. Install the fuel injectors to the fuel rail.
  2. Apply a light coating of clean engine oil to the O-ring on the nozzle end of each injector.
  3. Insert fuel injector nozzles into openings in intake manifold. Seat the injectors in place.
  4. Install the 2 bolts to the fuel rail. Tighten fuel rail bolts to 170-230 inch lbs. (19.5-25.5 Nm).
  5. Install the wiring harness to the fuel rail.
  6. Connect and lock the electrical connectors to the fuel injectors.
  7. Connect the fuel line to the fuel rail.
  8. Rotate the assembly back into place and install the 2 bolts to the thermostat housing tighten to 110 inch lbs. (12.5 Nm).
  9. Move the upper radiator house clamp back into place.
  10. Install the 2 small hoses to the thermostat housing.
  11. Fill the Coolant system.
  12. Install the intake manifold.
  13. Install the 2 bolts to the rear of the intake manifold tighten to 250 inch lbs. (28 Nm).
  14. Install the 5 bolts to the front of the intake manifold and tighten to 250 inch lbs. (28 Nm).
  15. Install the vacuum lines to the rear of the intake manifold.
  16. Connect and lock the MAP sensor electrical connector.
  17. Install the cables to the throttle body bracket.
  18. Install the throttle and speed control cables to the throttle body.
  19. Install the throttle control shield.
  20. Connect and lock the electrical connections at the throttle body.
  21. Connect the purge hose to the throttle body.
  22. Connect the throttle body inlet hose to the throttle body and tighten clamps to 20-30 inch lbs. (2-4 Nm).
  23. Connect the negative battery cable.
  24. Use the DRB® scan tool ASD Fuel System Test to pressurize the fuel system. Check for leaks.

Mar 02, 2017 | Chrysler Cars & Trucks

1 Answer

What is next on trouble shooting fuel injectors?


what engine?

Do you have power to the injectors? if not check the ECM1 fuse. If blown check the wiring harness around the throttle body for pinched wires to the injectors. Really common on the early throttle body engines.

Aug 19, 2015 | 1989 Chevrolet C1500

1 Answer

Engen problem and missing


Sir, your question is not very clear, but I will still try to post a solution here. Engine missing could be due to any problem in fuel system, ignition system, engine or ECM as well.

LOW ENGINE IDLE SPEED (Poor idling):
-Throttle body (do the cleaning and idle speed learning)
-A /C signal circuit
-Fuel pump control circuit
-Fuel pump
-Intake system
-P C V valve (clogged or open) and hose

ROUGH IDLING:
-Cylinder Compression
-Ignition system (Igniters, spark plugs, wiring harness)
-Spark plug fouled, gap too wide or too short. (1.00-1.1 mm)
-Fuel injector circuit
-E C M power source circuit
-Fuel pump control circuit
-Fuel pump (required pressure 44 psi - 49 psi)
-Throttle body (cleaning)
-Intake system
-P C V valve and hose
-Air fuel ratio sensor
-Heated oxygen s ens or
-Mass air flow meter
-Idle hunting
-Throttle body
-Intake system
-P C V valve and hose
-Air fuel ratio sensor
-Mass air flow meter

HESITATION/ POOR ACCELERATION:
-Fuel pump control circuit
-Fuel pump
-Spark plug
-Ignition system
-Fuel injector circuit
-E C M power source circuit
-Mass air flow meter
-Throttle body (do cleaning)
-Intake system
-Valve timing
-Cylinder Compression


Jan 18, 2014 | 2008 Toyota Corolla

1 Answer

Ok on my 98 Chevy s10 I've pin pointed down to the


If you can make the injector click without cranking the engine, the injector ground circuit is bad, probably the computer.
If the injector only clicks when cranking, the ground circuit is working right, so the problem is with the injector drive circuit. There should be a fuse for the injectors in the power distribution box by the battery. Have you checked for that? Also check for power to the fuse with key on. Use a testlight or voltmeter to check for power.

Nov 08, 2012 | Cars & Trucks

2 Answers

I have a 1990 chevy truck k1500. getting gas to throttle body but not to engine. new fuel pump new fuel filter rebuilt throttle body. do you have any ideas


Throttle body injection? replace the injectors. First check for power to them. 12 volts from one of the wires with key on

Sep 05, 2011 | 1990 Chevrolet K1500

1 Answer

1993 geo tracker fuel injector


ecm does control but is also based on input from the Throttle position senser. unplug the TPS and try again. Also make sure the ECM and engine grounds are good

Feb 21, 2010 | 1993 Geo Tracker

1 Answer

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....

Mar 21, 2009 | 1987 Nissan Pickup

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

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8522 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...