A lot of people swear by AutoEnginuity® - OBD2 Scan Tool - Professional PC and PDA Diagnostics but you need the additional Ford package to read all codes I believe and do injector buzz tests.
I use OBD-2 Vehicle Explorer Scan Tool Browser , it's old but it's cheap and it's what I've used but I haven't had any major problems, just P1211 codes due to my aggressive DP tunes. Don't think it can do a buzz test.
I was going to get a cheap scanner like this one: eBay Motors: Car Scanner OBD2 CHECK ENGINE LIGHT CODE READER OBD'2 (item 370099722889 end time Oct-19-08 17:07:03 PDT)
or this one for a few more bucks:
eBay Motors: OBD II 2 OBD2 AUTO TROUBLE CODE READER SCANNER TOOL (item 110301228012 end time Oct-28-08 08:40:19 PDT)
just for keeping it in the glove box when it pops the P1211 code due to my heavy foot.
Neither of those will likely give you any detailed codes. If you want to use a scanner in 2003-2008 vehicles you'll need one that can scan "CAN" bus like this one: eBay Motors: SUPER CAN Universal OBD2 OBD II Code Scanner /Reader! (item 190255869150 end time Oct-19-08 11:00:00 PDT)
With the laptop pc based obd software I can do a lot more testing and look at live data streams, etc but just for problems on-the-road something that fits in the glove box can be handy, especially on trips.
I use OBD-2 Vehicle Explorer Scan Tool Browser , it's old but it's cheap and it's what I've used but I haven't had any major problems, just P1211 codes due to my aggressive DP tunes. Don't think it can do a buzz test.
I was going to get a cheap scanner like this one: eBay Motors: Car Scanner OBD2 CHECK ENGINE LIGHT CODE READER OBD'2 (item 370099722889 end time Oct-19-08 17:07:03 PDT)
or this one for a few more bucks:
eBay Motors: OBD II 2 OBD2 AUTO TROUBLE CODE READER SCANNER TOOL (item 110301228012 end time Oct-28-08 08:40:19 PDT)
just for keeping it in the glove box when it pops the P1211 code due to my heavy foot.
Neither of those will likely give you any detailed codes. If you want to use a scanner in 2003-2008 vehicles you'll need one that can scan "CAN" bus like this one: eBay Motors: SUPER CAN Universal OBD2 OBD II Code Scanner /Reader! (item 190255869150 end time Oct-19-08 11:00:00 PDT)
With the laptop pc based obd software I can do a lot more testing and look at live data streams, etc but just for problems on-the-road something that fits in the glove box can be handy, especially on trips.