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  3. SCITOO CB15261901S

SCITOO CB15261901S Fuel Injectors 1.8L

fits model: Quattro. make: Audi. year: 2003–2006.

Cb15261901s Scitoo For 2003 2004 2005 2006 Audi Tt Quattro 1.8l 4 New Fuel Injectors

( Brand: Scitoo ), ( Manufacturer Part Number: CB15261901S ), ( Manufacturer Warranty: 1 Year ), ( Interhange Part Number: 06a906031bc ), ( Item Weight: 1 Lb ), ( Product Type: Fuel Injector ), ( Fitment Type: Direct Replacement ), ( Bundle Listing: No ), ( Placement On Vehicle: Front ), ( Number Of Hole: 4 Hole ), ( Injector Design: Metal Composite Plastic ), ( Connector Color: As Shown In The Picture ), ( Package: 4pcs ), ( O-rings Included: Yes, Preinstalled ), ( Fuel Delivery Type: Fog-type Spray ), ( Oe Spec Or Performance/custom: Oe Spec ), ( Fuel Type: Gasoline ), ( Performance Part: Yes ), ( Connector Type: Male )

Review SCITOO Audi 1.8l New Fuel Injectors fits QUATTRO 2003–2006

The **Scitoo CB15261901S** is a high-quality, direct-fit replacement for the fuel injectors on 2003 through 2006 Audi Quattro models equipped with the 1.8L turbocharged engine (designated as the **AUM, AUM2, or AUM3** variants). Engineered to meet or exceed OEM specifications, these injectors are meticulously crafted to restore optimal fuel delivery, ensuring precise atomization and consistent performance across all engine conditions. Built with a robust **stainless steel nozzle** and a **ceramic-coated pintle**, the CB15261901S injectors are designed to withstand the demanding pressures and temperatures of a turbocharged environment while maintaining long-term durability. The **high-flow design** enhances throttle response, improves fuel efficiency, and minimizes carbon buildup, making them an ideal upgrade for both stock and modified applications. Whether you're addressing a misfire, poor acceleration, or simply looking to optimize engine performance, these injectors deliver reliable, clean-burning fuel injection with minimal resistance, ensuring a seamless fit and hassle-free installation. Backed by Scitoo s reputation for precision engineering, these injectors are a trusted choice for Audi enthusiasts seeking dependable, high-performance fuel delivery for their 1.8T Quattro.

### **Pros and Cons of Buying Scitoo CB15261901S Fuel Injectors for 2003 2006 Audi Quattro 1.8L**

#### **Pros:**

1. **Compatibility** The Scitoo CB15261901S is specifically designed for the 1.8L TFSI (Turbo Fuel Stratified Injection) engine found in the 2003 2006 Audi Quattro models, ensuring a direct fit without modification.

2. **OEM Quality** Scitoo is a reputable aftermarket brand that produces injectors with high precision, often matching or exceeding OEM standards in terms of flow rate and durability.

3. **Improved Performance** If the original injectors are clogged or worn, replacing them with new ones can restore proper fuel delivery, leading to better throttle response, smoother power delivery, and improved fuel efficiency.

4. **Reliability** New injectors eliminate common issues like poor atomization, misfires, or fuel starvation, which can cause long-term engine damage if left unaddressed.

5. **Cost-Effective Upgrade** Compared to full engine rebuilds or turbo upgrades, injector replacement is a relatively inexpensive solution for restoring engine health.

6. **Warranty Coverage** Scitoo typically offers warranties on their injectors, providing peace of mind against premature failure.

7. **Easy Installation** These injectors are designed for straightforward replacement, requiring only basic mechanical skills and standard tools.

#### **Cons:**

1. **Cost** While more affordable than OEM injectors, they still represent a significant upfront investment, especially when factoring in labor if professional installation is required.

2. **Potential for Counterfeit Products** The aftermarket for Audi parts can be saturated with knockoffs. Ensuring the purchase is from a trusted seller (e.g., authorized dealers, reputable online retailers) is crucial to avoid subpar quality.

3. **Additional System Checks Needed** Replacing injectors alone may not resolve all performance issues. Other components like fuel pumps, fuel rails, or ECU settings might require attention for optimal results.

4. **Learning Curve for DIY Installation** If you re not experienced with fuel system work, improper handling (e.g., contamination, incorrect torque) can lead to leaks or damage.

5. **Mixed Reviews on Longevity** Some users report that aftermarket injectors, while initially reliable, may not last as long as OEM parts, particularly under aggressive driving conditions or with poor fuel quality.

6. **Compatibility with Modifications** If the vehicle has been modified (e.g., turbo upgrades, ECU tuning), the stock injectors may become a bottleneck. In such cases, larger injectors (e.g., 400cc or higher) might be necessary for optimal performance.

7. **Fuel System Maintenance Required** New injectors perform best when paired with clean fuel, a functional fuel filter, and proper fuel additives. Neglecting these can reduce injector lifespan.

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### **Conclusion:**

The **Scitoo CB15261901S injectors** are a solid choice for restoring or maintaining the health of a 2003 2006 Audi Quattro 1.8L TFSI engine. They offer a balance of compatibility, performance improvement, and cost-effectiveness, making them ideal for owners experiencing injector-related issues like rough idling, poor acceleration, or check engine lights (P0171/P0174 codes). However, they are not a "set-and-forget" solution proper installation, fuel system maintenance, and potential supplementary checks (e.g., fuel pressure, ECU calibration) are essential for long-term success.

If the vehicle has been heavily modified or you re pursuing high-performance tuning, consider whether these injectors will suffice or if larger, high-flow injectors are needed. Always verify the seller s authenticity to avoid counterfeit parts, and prioritize professional installation if you lack experience with fuel systems.

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### **Recommendation:**

- **Buy from a trusted source** (e.g., Audi specialty shops, reputable online retailers like **Audi Parts 4 Less, RockAuto, or eBay verified sellers**) to ensure genuine Scitoo injectors.

- **Pair with a fuel system flush** and high-quality fuel additives (e.g., **Liqui Moly Jectron, Seafoam**) to clean existing contaminants before installation.

- **Inspect related components** (fuel pump, fuel filter, fuel rails, O2 sensors) during the process, as they can impact injector performance.

- **Consider professional installation** if you re unsure about handling fuel pressure or wiring connections.

- **Monitor performance post-installation** watch for improvements in drivability and fuel economy, but be cautious if issues persist (e.g., new misfires could indicate other problems like wiring or ECU issues).

For most stock or lightly modified 1.8T Quattros, these injectors will be a worthwhile upgrade. If you re pushing the engine harder (e.g., with a turbo or aggressive tune), research whether **larger injectors (e.g., 400cc or 450cc)** are necessary to avoid fueling limitations.

Details:

Fast shipping: All our packages use USPS First Class/UPS/FedEx. From 2-20ms depending on engine speed and throttle position which will pull the valve to open. New List Item. If the air-fuel ratio is incorrect due to an injector problem, it may not burn thoroughly.

The Check Engine light can come on with misfire codes related to the affected cylinder. An engine misfire. Engine surge during acceleration. Audi TT Quattro 1.8L 2003 - 2006.

High Performance Flue Injectors Fuel injectors deliver fuel from the rail into cylinders by use of a solenoid powered valve. If the fuel injector gets stuck open, it could dump excessive amounts of into cylinder. Or, fuel economy can decrease simply because the engine is compensating for a poorly operating cylinder. That can cause a stumbling or uneven running condition, and the PMS fluctuate.

They can include. Part Number: FJ896, 06A906031BC. For 2003 2004 2005 2006 Audi TT Quattro 1.8L 4 New Fuel Injectors High Performance Flue. It up spraying the atomized fuel.

Inconsistent injector performance can cause an occasional surge since fuel might be sprayed properly one moment and too much or little the next. A rough idle. Poor fuel economy. Specification of our item: Brand New O-Rings Included: Yes, preinstalled Injector Design: Metal composite plastic.

Especially when not under throttle, one or more cylinders that aren producing power normally can make it feel like the engine is going to stall. Fuel delivery type: Multi-hole, fog-type spray, excellent fuel itemization. The coils in the solenoid will have electricity applied short bursts called pulse width typically. Engine hesitation or stumble.

part #: cb15261901s price

  • $21.99

specifications carfuelinjector:

  • for models: Quattro
  • for makes: Audi
  • for years: 2003-2006
  • brand: Scitoo
  • mpn: Cb15261901s
  • manufacturer warranty: 1 Year
  • interhange part number: 06a906031bc
  • item weight: 1 Lb
  • product type: Fuel Injector
  • fitment type: Direct Replacement
  • bundle listing: No
  • placement on vehicle: Front
  • number of hole: 4 Hole
  • injector design: Metal Composite Plastic
  • connector color: As Shown In The Picture
  • package: 4pcs
  • o-rings included: Yes, Preinstalled
  • fuel delivery type: Fog-type Spray
  • oe spec or performance/custom: Oe Spec
  • fuel type: Gasoline
  • performance part: Yes
  • connector type: Male

returns carfuelinjector:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

general carfuelinjector:

  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

seller carfuelinjector:

  • rating: 99.5%
  • city: Ontario, California
  • # reviews: 14963

offer carfuelinjector:

  • options: Ship-to-home
  • best offers: True
  • sold: 0
  • started: April 30, 2026
  • quantity: 10
  • availability: In Stock

shipping carfuelinjector:

  • type: Fixed
  • carrier: FedEx
  • class: Economy
  • service: FedEx Ground Economy
  • cost: $0.00
  • transit: 4-7 Days

payments carfuelinjector:

  • credit card: Discover
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for models: quattro, for makes: audi, for years: 2003-2006, manufacturer warranty: 1 year, interhange part number: 06a906031bc, item weight: 1 lb, product type: fuel injector, fitment type: direct replacement, bundle listing: no, placement on vehicle: front, number of hole: 4 hole, injector design: metal composite plastic, connector color: as shown in the picture, package: 4pcs, o-rings included: yes, preinstalled, fuel delivery type: fog-type spray, oe spec or performance/custom: oe spec, fuel type: gasoline, performance part: yes, connector type: male,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 16177152430598604,
Scitoo CB15261901S Is Similar To:
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2 offers $21.99–$21.99 USD
  • New. Offer #1 priced at $21.99 + $0.00 shipping estimate = $21.99* total. How to Replace Fuel Injectors? Tips to remember . What is a fuel injector? A fuel injector is a device for atomizing and injecting fuel into an internal combustion engine.FREE SHIPPING
  • New. Offer #2 priced at $21.99 + $0.00 shipping estimate = $21.99* total. Spectification of our item: Brand New O-Rings Included: Yes, preinstalled Injector Design: Metal & composite plastic . High Performance Fule Injectors Fuel injectors deliver fuel from the fuel rail into the cylinders by use of a solenoid powered valve.FREE SHIPPING

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