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I have a 2004 Isuzu Rodeo 3.5 liter direct injection. it keeps saying the reduced power how do I fix it

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Posted on Jan 02, 2017

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SOURCE: reduce power and check engine lights on

reduced power usally points toward a gas pedal to throttle correlation meaning the drive by wire system is where the problem is

Posted on Apr 18, 2009


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My keys to 2004 isuzu rodeo won't start my truck but everything turns on

There's this website
They have books on ALL vehicles.
it covers wiring diagrams, electrical diagrams,
fuse diagram, torque specs, PCV, error codes, fault codes, service info, repair info, parts info, owner's/service/repair/parts/
maintenance manuals etc everything totally..
I have 1987 toyota 4runner model and I keep servicing and when needed repair it on my own. worth it !!!

Mar 17, 2018 | 2004 Isuzu Rodeo

2 Answers

Isuzu 3.0 tdi fault code can anyone assist with the description of this code as wel as the remedy

check the code as it is not showing up on the isuzu fault codes
if it is an obd=11 code it will be p ????
if it is a truck vehicle code it may be vehicle specific so call isuzu service centre to find what it is for

Jan 09, 2017 | Isuzu Cars & Trucks

1 Answer

My Isuzu axiom 2001 model always show reduced power and the throttle will race up please,tell me the problems I have. I changed plugs? and throttle mouth(huh), still the same problems is there.

ever get a full tune up this decade? yes/no.
no , then what are you waiting for, some guy to charge you for new engine with only bad spark plugs>? or fuel filter? or air filter?
which engine, be the first in 100s to say.
most dont and expect helpers to be like god, clairvoyant.
or super man with 12,000 mile xray eyes, really?

2004 has 6ve1 V6 but not in a 2001.!
2004 last isuzu car here. became rebadged cars. GM
but the 2001 i think is a Rodeo, so says the wiki!

If the gas foot causes engine RPM to raise super high over 3000 rpm and not attendant car speed increase(mph)this is called transmission slip. is it slipping , no? then its a weak engine
easy no ?
we dont have these parts in USA>????? change pluck and tortle mouth if fact , perplexing to read....

weak engines> facts. all.
reduced power has any causes, over 50, so will not cause you to go broke with my silly wild guessing as seen here. every day.

the engine power can drop from 3 reasons.
besides a bad engine, 25 reasons there.
in physics they are, (a good engine with full compression tests ok)
  1. lack of fuel (low fuel pressure)
  2. too much fuel, flooding misfire.
  3. and huge list of causes of misfires
  4. lost power misfiring is violent and engine shakes. (bad spark?)
  5. lost power feels only like dragging weight we call bogging.
  6. and is usually fuel pressure loss. or weak injections.
  7. bad sensor to the PCM , scan the PCM and win.
  8. lots more, but no thesis today, just a short list.
so you have 2 choices
get it fixed
or buy the tools and DIY ,
fish or cut bait... we say.

my guess get it fixed, the tools can cost.
$20 each
and if need to buy them all $100 (buy them as needed an win)
and a $100 scan tool.
or barrow one, buy one or ask any shop in town, hey mista,
can yous, scan me car for free?

now my wild useless guess
get a tuneup.

Apr 10, 2016 | Isuzu Axiom Cars & Trucks

1 Answer

Reduced power light is on in my 2001 Izusu Rodeo Sport

the Reduce light, is not transmission , light correct?

what country are you in., ( asked 10000 times zero answers .well 3)
what engine,? we cant guess engines, here, and it seems to be just that, the engine issues.??? felt is real;. sure..

is the tranny stick or auto...... autos can slip and go to limp home mode just like engines do. so what transmission?

if in USA all scan tool made will scan an ISUZU. 1996+
so then you see DTC errors. and why its in limphome mode.
"your reduced power deal"
there is no other way,,,, besides, 1000 pages i type on how to test EFI with not scan tools.....I can do it. but refuse. to type that here..
as one famous poster said.
you want 50 years experience on 1 fixya page. :LOL

i wont say that, I say.
1: check all fuses.
2: make sure battery, voltage is 13.3 to 15v running, if not you have charge system failures, fix that first because EFI will not run on dead batteries, ever. (discharged for any reasons)
3:Scan it. do so and tell the DTC errors, im sure you have them.
4: or did you skip the 60,000 mile major tuneup, or never did one this decade,,,, wow, that be why , huh?

Mar 20, 2015 | 2001 Isuzu Rodeo

2 Answers

Isuzu engine 4jh1 3.0 l diesel timing marks

Rodeo with a diesel , non turbo?
this is usa forum with usa book, is your a USA car?
seems not.
now year stated, is this a test. 1991 to 2004 , wow.
im not going to look up all years for you and see if they vary.
why would we....?
cam timing, or pump timing.
we must guess that too?>??????????????????

point finger to something and say, this thing,,,,

here is the wiki blurb on 4jh1
The 4JH1-T is a 3.0 L OHV direct injection engine, turbo intercooled which replaced the 4JB1T in the Faster/Rodeo pickups. This vehicle was sold as the Holden Rodeo in New Zealand and Australia. On some models it features an electronically controlled injection pump. Stock power was 120 hp (88 kW) and 245 N·m.

why ask USA gringos about non USA cars.
and for sure not telling your country, that be bad.

see the word, electronically there.
we cant guess that , either.

Apr 15, 2014 | Isuzu Rodeo Cars & Trucks

1 Answer

2004 isuzu rodeo check engine light stays on and reduced power light goes on and off but when on car looses speed. When reduced power light goes off, vehicle lunges forward and runs fine. My mechanic and...

I tried the DIY service and repair manuals from a website and it actually helped me repair transmission problem in my jcb 3cx site-master. it wont move forward or reverse, engine is good both solenoids for
forward and reverse work.
I don't have much technical knowledge but I just followed it step-wise, and works perfect! got it from

Feb 25, 2018 | 2004 Isuzu Rodeo

1 Answer

2004 rodeo 3.5, reduced power, replaced converters, throttlebody, what is it

what about i tune up plugs wires fuel filter? if yes to all of that try finding a shop that can perform a bg injection service. you may have clogged injectors causing low power.

Jul 01, 2010 | 2004 Isuzu Rodeo

1 Answer

FIring Order of a 2004 Isuzu Rodeo 3.2L Engine

My apologies for the delay....Due to the bad economy the number of questions posted has skyrocketed 50% in the last 4-months.

For 2WD and 4WD it is the same:
For 3.2L:
Firing Order:
(front of vehicle)
Coil is on the Spark Plug

Let me know if this helped, or if you have additional information or questions. Feel free to contact me at!

Feb 06, 2010 | 2004 Isuzu Rodeo

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