Product Description

This fuel pressure tester diagnoses drivability problems caused by poor fuel pressure. 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.

Product Details

• Amazon Sales Rank: #658 in Automotive
• Brand: Actron
• Model: CP7838
• Released on: 2005-09-28

Features

• 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
• Features adaptors to fit most domestic and import applications

Customer Reviews

not bad but be careful
The first one I bought started leaking raw gasoline from the gauge while I was testing the pressure on a running car! Very scary. My son was just coming out into the garage and I yelled to get back in the house while I ran to turn off the engine. Luckily, nothing happened but it could have been a disaster. It may have been a rare manufacturing defect but who knows how good the quality on these things really is? I ended up getting a replacement for free and that one has been just fine. No problems. However, the first experience still haunts me. So when you first use one of these things, have someone in the car ready to kill the engine and keep a very close eye on the tester for at elast the first 10 mins of use.

Great Moneysaver
The modern fuel injection systems are great! Untill something goes wrong. Then you find out that the problem can be caused by any of the many parts involved. In my case, bad start caused by: clogged or leaking injectors, faulty pressure regulator, clogged fuel line and/or filter, fuelpump pressure and more.
I will not write down my experiences with the local stealership, suffice to say that if they touch a vehicle I own ever again I will call de cops!
After eliminating electronic causes I replaced the fuelfilter (cheap, easy and about time anyway). When that didn't do the trick I checked out the carforums online for my model/year and found a host of possible causes for the problem. I also found that the single one thing needed for a proper diagnose of the fuel system was a fuel pressure tester.
Found this one at a price below that of any of the fuel system parts.
It absolutely worked for me. I was able to pinpoint the problem within minutes and after replacing the fuelpump I could see exactly what effect my repair had!
It has saved me a lot of money, time and aggravation!
The tester is certainly worth 5 stars. It does what it is supposed to, is solid enough to last a lifetime and very affordable.
The only negative I can think of is the manual, which gives very limited instructions.
Get a good manual for your model/year vehicle or go online and find what you need to know (or, preferably, do both). Read up!
Remember, you will be working on your cars FUEL system. You need to know what you are doing!!! Knowhow and common sense are absolute musts!!!
So are the proper tools. This is one of them. Be Safe!

it works
Got the job done for me. Confirmed I was leaking fuel pressure after shutting off the engine (causing hard starting) and allowed me to determine where it was going, which turned out to be the last place I would have expected. It cost half what the dealer's diagnosis did, who mis-diagnosed the problem. Did not have the problem of leakage around the pressure release button that another reviewer mentioned. However, if you use the T hose adapter I'd recommend putting a wrench on the fitting to make sure the two brass parts are tightly screwed together before using it. I had a bit of a leak from there that disappeared once I cranked up the tightness a turn or so. If you use the T fitting take a look at it and you'll understand what I'm talking about.