2007 Isuzu npr 5.2 diesel no power codes p1093 and U010C clear codes power comes back runs good until check light comes back on then no power same codes come back p1093 first then U010C William

DIESEL RUN AWAY, GOOGLE IT 100 YEAR NO SAME ANSWER.
it is burning it;s own oil pan OIL up past fully defective, Piston control rings bad or head valve seals.
it needs and over haul, ask in real truck or submarine, EM (eng mate)
.or pan whey to full or 0w oil used in old old engine.
29 years is good run nO? may be A record,

When the brake booster light and brake light come on after replacing the batteries in a 2017 Isuzu NPR Diesel, it could indicate a problem with the brake system or a malfunctioning brake booster.
Here are some steps you can take to troubleshoot the issue:

1. Check the brake fluid level: Low brake fluid level can cause the brake booster light and brake light to come on. Open the hood and check the brake fluid level in the reservoir. If the level is low, top it up with the recommended brake fluid and check if the lights go off.
2. Check the brake system: Inspect the brake lines, brake pads, and brake rotors for any damage or wear. If the brake pads are worn out, replace them immediately.
3. Check the brake booster: The brake booster is responsible for increasing the force applied to the brake pedal. Check the brake booster for any damage or wear. If the brake booster is malfunctioning, it will need to be replaced.
4. Reset the brake booster light: If the brake booster light and brake light stay on even after checking the brake fluid level and inspecting the brake system, it may be necessary to reset the brake booster light. To reset the brake booster light, turn the ignition switch to the "on" position without starting the engine. Pump the brake pedal 3 times, then turn the ignition switch off. Start the engine and check if the lights go off.

If none of these steps work, it is recommended to take the vehicle to a certified mechanic or the nearest Isuzu dealership for a professional diagnosis and repair.

If the headlamps are on and the light switch has no affect, either the switch is faulty or you have a chaffed wire somewhere making the relay pull in.

no car stated? some huge NPR truck, What?
no country
why>?
we cant guess lights,ever, we in USA forum are 100% blind.
guess you lost the operators guide book,, oops, fail.

glow plugs bad. (by all means)
filters packed.
start ok with starting fluid spray easy???????

this is no NPR forum.
not even close, just cars and light trucks 4k or less.
not 27,000 lb ones.
hope you get lucky,
I buy the book, so can do work and not beg for 1000 pages 1 by one.

go to isuzu,
walk in
and buy the book on your big truck.
I do not think there is any online big truck support books.
nor in Autozoned.
sorry....
or get it serviced?

btw, no engine stated.

Julie
what year NPR 1998
what weight class.?
if not sure post a photo of the beast. !
sorry not all NPRs are the same, not EVEN close.
so not listen to the net rumors, why trust your life to rumors>?

read this, (where are you?)

The fifth generation Isuzu Elf appeared in July 1993, with more sculpted headlights.
In May 1995 it received a minor change, including upgraded, cleaner diesel engines.
An OEM deal with Nissan led to the Elf also being sold badged as a Nissan Atlas and a Nissan Diesel Condor 20/30/35 beginning at this time, followed by the Nissan Atlas Max from 1996 until 2000. The Atlas Max was based on the new, lighter duty Elf 100 (June 1995) which was available with a 2-liter petrol or a 2.5 or 2.7-liter diesel engine.[20]
In May 2004, subsequent to a few minor changes, the Elf underwent a more major facelifts with new, larger, trapezoidal headlamps.
Another OEM deal was forged at this time and the Elf was now also marketed as a Mazda Titan in parallel.
In Malaysia, this truck is manufactured by Heavy Industries Corporation of Malaysia (Isuzu HICOM Malaysia) under the name of HICOM Perkasa, but carrying the Isuzu N-Series Commando badge.
? 100ft/lbs is a good guess, but is but a guess.

this is no heavy truck forum. its only light and cars.
NPR what, (the number)
and what engine? fuel parts match up to and engine.
no year NPR. wow. and have gas or diesel engines.
no fuel stated either.
NPR started in USA in 1985 (this is USA forum)
this?

first off
no country stated
the books are indexed by
country
year 2002
isuzu NPR heavy truck
ask Isuzu for matching FSM book at your dealer.>
factory service manual.

shorts
remove all loads on the feed F14.
then add them 1 by 1 until it blows. bingo. last add is shorted
id bet ecu and glows are not same feed
glows suck huge current
ecu, nill

join a read isuzu forum
or heavy truck?

P1093: Fuel pressure low during power enhancement

Check the oil and see if it smells like diesel. Sounds like an injector stuck open.
The LB7 trucks have injector warranty extended to 200k, so I would think about calling the dealer.