Engine assembly Citroën Peugeot 1.4 HDI 66 kw 9650182080 6558NJ

Description

Main engine assembly CITROEN PEUGEOT 1.4 HDI 66kw 8HY DELPHI injection system
Fully functional, tested

Part description

This main engine wiring harness is intended for Citroën/Peugeot cars with 1.4 HDI 66 kW engine and DELPHI injection system. The engine harness provides the interconnection of key electrical circuits in the engine compartment – failure typically results in erratic outages, poor contacts, or errors related to power supply and sensor/actuator signals.

You can often recognize the part you are looking for by the number 9650182080 or 6558NJ. A suitable solution for damage to the insulation, oxidized pins or after unprofessional repairs to the original wiring.

Technical information

• Manufacturer: Stellantis
• Model: Citroën C3, PEUGEOT 1007
• Other numbers: NFP

Product codes

• Product codes: 9650182080, 6558NJ

Installation recommendations

Generally/typically for engine wiring harnesses, the exact way of routing and attachment may vary depending on the specific car design and equipment. It is important not to twist the bundle, not to pinch it and to observe the original routing and securing of the connectors.

1) Before assembly (checks of used part)

• Compare with the old bundle: numbers 9650182080 / 6558NJ, type and number of connectors, their keying and branch lengths.
• Check the condition of the insulation (abrasion, hardening, cracks), grommets and protective tubes.
• Check connectors: broken fuses, bent/squeezed pins, signs of oxidation or overheating.
• Make sure the bundle matches the DELPHI injection system according to the documents.

2) Necessary tools and materials (in general)

• Basic set of hand tools (ratchet/bit, screwdrivers, pliers).
• Plastic pry bar for removing covers and fasteners.
• Pliers and duct tape pliers.
• Insulating tape for cars / textile tape, tightening tapes (for re-fastening).
• Electrical contact cleaner (for connectors if needed).

3) Step-by-step assembly procedure

1. Disconnect the battery (to protect the electronics and prevent a short circuit).
2. Before disassembling the old harness, take a picture of the routing and fixings (clips, holders, grommets).
3. Release the connectors gradually – first unlock the connectors, then pull the connector without prying the cables.
4. Disconnect the harness from the holders and clamps so as not to pull the wires from the connectors.
5. Remove the old bundle and place it next to the new one for a final branch and connector comparison.
6. Place the new bundle in the engine compartment and guide it along the same route as the original.
7. First snap the bundle into the main brackets/clips to keep it in the correct position and not go under tension.
8. Connect the connectors one by one – always push to the stop and check the fuse.
9. Check that no branch is lying in places of possible friction, pinching or near sources of high heat; possibly renew the protection with the tube/tape.
10. Replenish/renew tie-downs and fasteners so that the bundle cannot vibrate.
11. Reinstall all removed covers and parts that prevented access.
12. Connect the battery.
• 4) Post-assembly checks and test drive/function verification
  • Verify that the engine starts and runs steadily; watch for dropouts or fluctuations.
  • Check that the connectors are firmly secured and the harness is not touching any moving parts.
  • After a short test drive, visually check again that the harness has not loosened and is not rubbing anywhere.

  5) The most common assembly mistakes + how to avoid them

  • Swapping similar connectors → before disconnecting, mark the connectors and take photo documentation.
  • Pulling on the cables instead of the connector → always unlock the fuses and handle only the body of the connector.
  • Bad routing (tension, pinching, friction) → keep the original routing and all fixings.
  • Unsecured connector fuses → check for click and stop after connection.

  Reasons why the part is damaged

  • Aging of insulation and its embrittlement due to heat and time.
  • Vibration of the motor and the subsequent rubbing of the bundle against the surrounding parts when the clips are missing.
  • Oxidation of contacts in connectors (moisture, dirt), loose pins or damaged fuses.
  • Unprofessional cabling repairs (twisted connections, inappropriate insulation) leading to transition resistances and blackouts.
  • Mechanical damage during repairs in the engine compartment (pinching, breaking, pulling out wires).