--- product_id: 82121742 title: "Actron CP7838 Professional Fuel Pressure Tester" brand: "actron" price: "€ 8.38" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.sk/products/82121742-actron-cp7838-professional-fuel-pressure-tester store_origin: SK region: Slovakia --- # 0-100 psi / 0-700 kPa dual scale gauge Compact pouch with multi-adapters included 6-ft hose for hard-to-reach test points Actron CP7838 Professional Fuel Pressure Tester **Brand:** actron **Price:** € 8.38 **Availability:** ✅ In Stock ## Summary > ⛽ Diagnose like a pro, fuel your confidence! ## Quick Answers - **What is this?** Actron CP7838 Professional Fuel Pressure Tester by actron - **How much does it cost?** € 8.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/82121742-actron-cp7838-professional-fuel-pressure-tester) ## Best For - actron enthusiasts ## Why This Product - Trusted actron brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durability That Lasts:** Built to endure years of professional use with leak-proof hoses and rugged construction. - • **Extended Reach Testing:** 6-foot hose ensures you can access even the most awkward fuel system points without hassle. - • **Universal Compatibility:** Includes specialized adapters, like the M12 x 1.25 Banjo, fitting domestic, Asian, and European vehicles. - • **Precision Pressure Readings:** Dual-scale 2½" gauge delivers accurate fuel pressure diagnostics for fuel-injected systems. - • **Safe & Convenient Operation:** Relief button allows safe fuel pressure release without disconnecting the gauge, minimizing spills and risks. ## Overview The Actron CP7838 Professional Fuel Pressure Tester is a durable, precision tool designed for fuel-injected vehicles. Featuring a 2½" dual-scale gauge (0-100 psi/0-700 kPa), a 6-foot hose for easy access, and a set of adapters including the essential M12 x 1.25 Banjo fitting, it enables accurate, safe fuel pressure diagnostics. Ideal for professionals and enthusiasts alike, it comes with a handy storage pouch and a relief valve for safe operation, proven reliable over years of use. ## Description This fuel pressure tester diagnoses drivability problems caused by poor fuel pressure. It is designed for fuel injected systems. It features a relief button and 6-ft hose to safely dispose of gasoline without disconnecting the gauge. It also works on the throttle body injection with a threaded connection at fuel filter or throttle body. It is 2½" gauge with 0-100 psi/0-700 kPa scales for accurate measurements. The gauge resolution is not optimal for carburetor applications and it does not include any carburetor adapters. To test fuel pressure on carbureted engines, Actron CP7803 Vacuum and Fuel Pressure Tester Kit can be used. Review: Great tool to add to my tool collection - I have a 1991 Toyota Land Cruiser that I recently inherited from my brother. The first thing I started to do when I got it was to start tuning it up. In the process of performing an overall tune up and inspecting systems that had wear and tear. I needed to restart the engine after having reset the timing while adjusting the valves. In the process I had made a minor oversight in the TDC adjustment. I had set TDC to the exhaust stroke as opposed to the required compression stroke. Consequently I experience a no start situation that sent me on an investigation to rule out 3 key areas that could cause a no start - spark, air, and fuel. Spark is a simple test that you can use a 5 dollar spark test tool or with out it use a simple stunt of turning over the engine and grounding the spark plug to the block to see if there is spark at the plug. After you have observed the spark and shocked yourself you with a major jolt of electricity you can conclude the distributer and the plugs are flowing with current. Next you need to check to make sure that there are no blockages of air coming in through the air box, air cleaner, mass flow sensor and throttle body. Also need to check your vacuum hoses for correct connections, cracks, leaks at connections etc. Now the last part is fuel. Checking fuel will tell me if my fuel pump is working, or if I have a blockage or leak in the system that need to be investigated. Now, you need to check your fuel pressure in the fuel line connecting to the fuel filter leading into the fuel injectors. Farther down stream on the intake manifold you need to check the fuel pressure at the cold start fuel injector. Since my Truck is a Toyota I specifically need the special "M12 X 1.25 Banjo Adapter" provided in the Actron CP7838 Professional Fuel Pressure Tester kit. I used it to pick up the pressure reading at the cold start fuel injector. I could have been easily blocked at that point if it were not for that adapter that many other kits do not provide. You need this adapter to connect to Asian, European and some domestic vehicles equipped with fuel Banjo Bolt Connections. Without this part I could have been running all of the local metro area trying to find one tiny part. The cost in gas and time and frustration to locate that part alone could have easily rivaled the cost of the "Actron CP7838 fuel pressure tester" that I just purchased. The small adapter can be found on the web for around $10 to $12 plus the $5 dollars for shipping and handling. Thus the entire pack is a great deal and it works amazingly well. I very happy to have added this new tool to my collection. It does everything I need it to do for my Land Cruiser. It works and is a great value for the price. Review: Lasts a long time! - Good product, I bought this over 9 years ago and it still works like the day I got it. I do take really good care of my things though. I have used it on many vehicles and no issues at all, no leaks no degradation of hoses no anything. I would definitely recommend this to a friend, and buy again if the need ever arose. ## Features - This Fuel Pressure Tester is designed for fuel injected systems - Measures the available fuel pressure with engine running on or off - Features 6-ft hose to aid reaching any test point - Handy pouch for storing gauge and adapters and features adaptors to fit most domestic and import applications - 2½" gauge with 0-100 psi/0-700 kPa scales for accurate measurements ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0009XQUKC | | Brand | Actron | | Customer Reviews | 4.6 4.6 out of 5 stars (701) | | Date First Available | July 12, 2004 | | Is Discontinued By Manufacturer | No | | Item Weight | 2.2 pounds | | Item model number | CP7838 | | Manufacturer | Actron | | Manufacturer Part Number | CP7838 | | OEM Part Number | CP7838 | | Product Dimensions | 12.5 x 8.5 x 2.75 inches | ## Images ![Actron CP7838 Professional Fuel Pressure Tester - Image 1](https://m.media-amazon.com/images/I/81imxp92D1L.jpg) ## Questions & Answers **Q: Would this hook up to ford mustang** A: Yes in my opinion. This unit was designed to check fuel pump pressure and leaks in the fuel lines. You did not say what year that Ford was. This gauge goes up to 100 PSI. Check the Ford Specs for the proper fuel pump pressure. **Q: Does this work on 2000 silverado 1500 4.8 v8** A: Yes, the Actron CP7838 Pro Fuel Pressure Tester Kit can be used on a 2000 4.8L Chevy Silverado V8. There should be a Schrader test port located on the fuel rail. The coupling on the test hose in the CP7838 Fuel Pressure Tester Kit will connect directly to this Schrader test port. **Q: Does this work in a Honda civic 2002..?** A: No, the CP7838 Pro Fuel Pressure Tester Kit will not work on a 2002 Honda Civic. The Kit does not have the necessary connecting adapter for the Honda Civic. **Q: Will this work on a 4.6l northstar engine in a 95 cadillac eldorado?** A: Yes, the Actron CP7838 Fuel Pressure Tester will work on a 1995 Cadillac Eldorado with a 4.6l Northstar engine. The test port should be located on one end of the fuel rail where the fuel lines are connected. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great tool to add to my tool collection *by E***. on April 11, 2013* I have a 1991 Toyota Land Cruiser that I recently inherited from my brother. The first thing I started to do when I got it was to start tuning it up. In the process of performing an overall tune up and inspecting systems that had wear and tear. I needed to restart the engine after having reset the timing while adjusting the valves. In the process I had made a minor oversight in the TDC adjustment. I had set TDC to the exhaust stroke as opposed to the required compression stroke. Consequently I experience a no start situation that sent me on an investigation to rule out 3 key areas that could cause a no start - spark, air, and fuel. Spark is a simple test that you can use a 5 dollar spark test tool or with out it use a simple stunt of turning over the engine and grounding the spark plug to the block to see if there is spark at the plug. After you have observed the spark and shocked yourself you with a major jolt of electricity you can conclude the distributer and the plugs are flowing with current. Next you need to check to make sure that there are no blockages of air coming in through the air box, air cleaner, mass flow sensor and throttle body. Also need to check your vacuum hoses for correct connections, cracks, leaks at connections etc. Now the last part is fuel. Checking fuel will tell me if my fuel pump is working, or if I have a blockage or leak in the system that need to be investigated. Now, you need to check your fuel pressure in the fuel line connecting to the fuel filter leading into the fuel injectors. Farther down stream on the intake manifold you need to check the fuel pressure at the cold start fuel injector. Since my Truck is a Toyota I specifically need the special "M12 X 1.25 Banjo Adapter" provided in the Actron CP7838 Professional Fuel Pressure Tester kit. I used it to pick up the pressure reading at the cold start fuel injector. I could have been easily blocked at that point if it were not for that adapter that many other kits do not provide. You need this adapter to connect to Asian, European and some domestic vehicles equipped with fuel Banjo Bolt Connections. Without this part I could have been running all of the local metro area trying to find one tiny part. The cost in gas and time and frustration to locate that part alone could have easily rivaled the cost of the "Actron CP7838 fuel pressure tester" that I just purchased. The small adapter can be found on the web for around $10 to $12 plus the $5 dollars for shipping and handling. Thus the entire pack is a great deal and it works amazingly well. I very happy to have added this new tool to my collection. It does everything I need it to do for my Land Cruiser. It works and is a great value for the price. ### ⭐⭐⭐⭐⭐ Lasts a long time! *by M***Y on April 18, 2025* Good product, I bought this over 9 years ago and it still works like the day I got it. I do take really good care of my things though. I have used it on many vehicles and no issues at all, no leaks no degradation of hoses no anything. I would definitely recommend this to a friend, and buy again if the need ever arose. ### ⭐⭐⭐⭐⭐ great for the DIY kind of person *by V***C on June 9, 2008* This fuel pressure tester worked great for me. I was able to connect it to the test port on my fuel rail and test pressure within literally about 2 min. I didn't have any help, so i was able to lay the gauge down on the windshield and watch the results as I ran several tests from the drivers seat. Since the gauge has a rubber bumper around it, it stayed in place even when the fuel line pressurized. I did not have any problems with leaks at the fuel pressure release button. This tester confirmed I need a new fuel pump. I think it is the perfect balance of price, quality and functionality for the DIY'er. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/82121742-actron-cp7838-professional-fuel-pressure-tester](https://www.desertcart.sk/products/82121742-actron-cp7838-professional-fuel-pressure-tester) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-27*