Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
According to the not so helpfull owners manual i looked up it only has the under hood fuse box. (I personally dont believe this as there should be one for interior items and options. Have you looked up under dash , under drivers/passenger seat, under back seat?
The down side i am seeing is the tipm. These are notorious for relay issues for the permanently mounted (soldered on) relays having issues / failing. (This would cause no power to injectors via the auto shutdown relay or a related circuit issue)
www.eautorepair.net
. this will have your info needed for diagrams and any possible fuse box locations for your vehicle. As well as recalls, tsb's, and maintenance info for any trouble codes you may have as well as wiring diagrams.
No eBay APP ID and/or Cert ID defined in Kunena configuration
here's a link to the ebay page for the manual on cd just make sure to ask seller if it includes the 2.8 liter diesel in the cd otherwise the 2007 should have it. the other source I found was a sketchy website that when i revisited it made me believe it was a fake site to scam cc numbers.
I haven't been able to find a wiring diagram for the diesel Nitro or Jeep KK. The '07 gas shows a 5V supply to APP1, CKP and TPS on a brown/orange wire. Do you have 5V on the CKP now?
CRD injectors are typically controlled by the pcm directly via internal capacitors, (both power and ground) and may show up to 80v when in operation. If all other pcm functionality is normal, very unlikely to be a fuse.
KOEO testing at injector plug may show a nominal low voltage, used by the pcm for circuit integrity testing.
Morning! You are very correct because both the power and ground come direct from the ECM to the injectors. I did a voltage test on the powers of the injectors and cylinder 1 and 2 its giving me 0.055v and on cylinder 3 and 4 0.110v.
Hi,
are those injectors Bosch with a fuel line from top? Any chance they are piezo injectors and not a solenoid?? How did you check for power and ground at the injectors? I guess you are aware that you shouldn't disconnect piezo during operation.
If you disconnect piezoelectric injector during engine operation you might end up with a injector stuck in open position and possible made your engine hydrolock. Even poking around with a backprobes leads can do the same, happened to me but no hydrolock luckily.
I think you will need oscilloscope to test them, there is short pulse of voltage on them and it goes up to 200v, but basically you need a amp clamp probe to check them. Approximately amp draw is up to 10A. Dvom can not be used to pick up that fast pulse of a voltage. I am talking generally not about your specific car.
