Question about Isuzu Rodeo

1 Answer

Fuel trim on right bank on 1998 rodeo

Replaced timing belt cat new fuel pump and filter can find no vacuum leaks

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  • Isuzu Master
  • 75,235 Answers

Replace the intake manifold gaskets.

Posted on May 06, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 22 Answers

SOURCE: replacing the power steering pump on a 1998 isuzu rodeo

Remove low pressure and high pressure hoses (this one could be hard to break loose). You might want to have an oil pan handy, to capture the oil. Disconnect electrical sensor. Remove the bolt that holds belt tension adjustment plate. And finally remove the bolt that holds the pump in place. It is bolted from the back and located at the right lower corner of the pump if you are facing the front of the car. Remove the pump assy. I could not remove belt pulley at home, no matter how hard I tried. Ended up taking it to an automotive shop and they removed it in no time, using one of those "pneumatic impact guns". Assemble new pump. Fill the reservoir with PS oil. Make sure both of the front wheels are off the ground, start the engine and slowly spin the steering wheel back and forth for about 5 minutes or untill screeching sound stops and the liquid in the reservoir stops foaming. That will bleed any air that is in the system. Don't go all the way to the end of stroke. Good luck.

Posted on May 09, 2009

ILikeBMW
  • 117 Answers

SOURCE: 2000 bmw 323i P0173 & P0170 trouble codes

Hello There

These are very common codes on BMW's which can also be false codes, try clearing the codes and run the test again they may not come up again.
With regards to the sound which you thought was a vacum leak there a breather pipe which runs under the plastic engine cover near the injectors which always gets a tear init which will need replacing.

Hope this helps, please don't forget to rate me.

Posted on May 20, 2009

dennymulford
  • 1055 Answers

SOURCE: 1998 GMC Sierra- runs rough then stalls when

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Posted on Jun 06, 2009

  • 14036 Answers

SOURCE: 2001 Galant ES-V6 DTC is P0304 - Cylinder #4 misfire

look for weak valve springs.

Posted on Jun 22, 2009

greg_margo
  • 1959 Answers

SOURCE: Rough idle and acceleration on 1998 Chevrolet Silverado 5.0

Bad EGR valve comes to mind here. Assuming the plugs are good, the EGR valve woiuld be what I'd look at.

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Posted on Jul 26, 2009

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1 Answer

Codes 1133 and 0171 is coming up on my GMC JIMMY 1998


DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1

DTC P0171 Fuel Trim System Lean Bank 1

You have a bad vacuum leak or a fuel delivery problem on bank ! P1133 HO2S BANK 1 SENSOR 1998 Chevy Lumina 3 1

Mar 17, 2017 | GMC Cars & Trucks

1 Answer

I have the codes are po171 ..po174


code p 0171 refers to system too lean bank 1===causes --intake /exhaust leak---air system---MAF/VAF sensor--fuel pressure / pump---injector/ s---HO2S
code p 0172 refers to system too rich, bank 1===causes --intake blocked ---EVAP canister purge valve --fuel pressure --EGR system---injector/s -=-- HO2S
code p 0173 refers to fuel trim(FT) bank 2--malfunction===causes --intake leak---air system--fuel pressure /pump---injector/s --EVAP canister purge valve---HO2S
code p 0174 refers to system too lean, bank 2===causes intake / exhaust leak---fuel pressure /pump---injector/s---Air system---hose connection/s
I was not sure if you wanted all codes or just the first and last, however you will see that there are some common problems that may help point you in the right direction
1-- is the heated oxygen sensor (HO2S) which is the sensor before the cat converter
2--is the fuel pressure , so a fuel pressure test will determine if a regulator or fuel pump problem,
3--EVAP canister purge valve --replace as required
4--intake / exhaust leak --check for vacuum hose failure including hoses to vent controls and check the flexible exhaust connection before the cat converter for leaks
The rest are there to check if you haven't fix the fault before you get to them

Nov 05, 2015 | Cars & Trucks

1 Answer

P0300 1998 honda passport


These are notorious for intake leaks. If you can't find any vacuum leaks, verify the timing belt installation is correct. The timing marks on these are actually set up for having #2 on tdc, instead of #1, and the belts, and pulleys are marked accordingly. It's nearly impossible to set it up on #1 due to valve spring tension trying to rotate the cams. That's where I would start. The timing can be off one or two teeth without noticeable running issues. But likely you will get a check engine light with fuel trim codes like you have. Good luck!

May 06, 2014 | 1998 Honda Passport

1 Answer

1998 ford explorer with a rich/lean code


I would check for a vacuum leak somewhere. Like the post for the pcv hoses and elbows to the intake manifold gaskets not sealing. Check with at scan tool the fuel trims to see how the engine is running. If the long term fuel trim is over 10 % then there is a vacuum leak. It is rare for a lean running bank and at the same time a rich running bank. The only thing that could be possible cause for that would be the mass air flow sensor or the hose to the throttle body is not sealing causing unwanted air to get passed the MAF. These engines have a problem when it is cold the manifold gaskets not sealing and then when the engine is warm to seal and the fuel trims be high when cold and then be normal after it warms up

Mar 22, 2014 | 1998 Ford Explorer

1 Answer

Just got there codes for my 2000 323I P1250 P1188 P1189 P0304 P0173 P0170 It pass the test,anyone have any ideas ???


P0304 = #4 cylinder misfires
P0170 = Fuel Trim, Bank-1
P0173 = Fuel Trim, Bank-2
P1250 = this is invalid code for BMW
P1188 = Fuel control, bank-1, sensor-1 (pre-cat sensor)
P1189 = Fuel control, bank-2, sensor-1 (pre-cat sensor)
Vacuum leaks and/or sensor defective for the issues of the codes.
This error codes really need parts to replace. But you have to replace the thermostat first. Then clear the codes and see if any reappears,then replace defective part/s

May 01, 2012 | 2000 BMW 323

1 Answer

Hi there, i saw your ema:il on a threat i was reading online and am in desperate need of some advice if you have the time. this is my 2nd TT. i am trying to get it up and running at optimum...


a long winded statement but I will try to point you in the right direction
code p 0343 refers to camshaft position sensor (CMP A bank 1---high input
===causes --wiring short to positive ---CMP sensor ---ECM
code p1136 refers to long term fuel trim add-- fuel bank 1 system too lean
fuel trim is the new setting from the ECM after long term constant driving is done as it constantly reads the system and fine tunes to the new accelerator position and rpm setting it is what give a different economy on long drives
code p 1476 refers to EVAP emission control. LDP circuit malfunction/ insufficient vacuum=== causes wiring---vacuum leaks
the plug gap is way too close for electronic engines as most require a gap of .055"
you are spending a lot of time and money on items that are not related to the performance
boost pressure is around right at 12 psi as it indicates no air leaks in the intercooler or hoses
you need to get the fuel pressure readings as low pressure from a bad pump, blocked filter or problem fuel pressure regulator will give to acceleration problems
you can try flashing but use a scan tool to reset the ECM will be a better option
so to summarize -- replace the cam position position sensor
replace the heated oxygen and oxygen sensors ( heated oxygen sensor s are in the manifold before the cat converter and oxygen sensors are after the cat converter and are critical in fuel trim adjustments
Fix the vacuum leaks to the EVAP or replace the purge valve for the EVAP system
open the plug gap to the setting ( in old ignitions the gap was .025 " as they ran a voltage of 16k volts but electronic systems run a voltage as high as 75k volts) so a bigger gap is better as it gives a bigger flame front when sparking and so gets a better burn of the fuel
the most important tool you should have at hand is a ---workshop manual --- as everything you need is in pictures and procedures

Feb 28, 2017 | Audi TT Cars & Trucks

1 Answer

1998 Ford Taurus SE---171,000 KLM..... code P0 171 came up....what does this mean.....Have recently changed all plugs, wires and filters. Right bank running lean.


hi, this code refers to an engine fuel mapping strategy designed to monitor air flow going into the engine and exhaust flow out of the engine to prevent any vacuum leaks, rich fuel conditions, or clogged/open air induction systems that will cause failure of emissions control or catalyst failure. the pcm monitors long term and short term fuel trim to compensate for rich or lean combustion. if the long term fuel trim reaches limits of 15 percent adaptation either positive or negative, the codes p0171, p0172,p0173, p0174 and p0175 will be set depending on which condition is happening. generally, p0171 tells of extra lean combustion occuring on bank one(on your vehicle, it will be the half of the engine that is furthest towards the front of the engine block, where cylinder one is located, i think the rear bank of your engine) okay, look for air tube cracks and leaks btween the mass air flow sensor and the throttle body, look for spongy vacuum hoses that close under vacuum, look for obvious vacuum leaks, check the evap purge control solenoid hose, commonly leaking here, also check pcv valves to make sure they are not blow out. if all tests okay, next step is to check the intake manifold for vacuum leaks, cracks in the gasket, etc. if okay here, check fuel pressure, maybe clogged fuel filter causing low flow, clogged fuel injectors, and bad fuel pressure regulators can occur. if all checks out okay, check the mass air flow sensor by removing from housing and physically looking at the intake air side(the side that recieves air from the filter) for dirt and contaminates. you can check this first if you like, also common problem. ford does not recommend to clean this sensor, only replace if contaminated. but you can try to clean with brake clean just as a test to see if it helps, just don't overdue the amount of cleaner, little goes a long way. if all this tests and looks good, go see a ford dealer! the last step of the diagnostic strategy is the test pcm(engine computer), don't do it yourself, take it the dealer. good luck!

Jun 17, 2010 | 1998 Ford Taurus

3 Answers

CODE P0171 KEEPS ON COMING BACK ON,REPLACE O2 AND MAP


Hi Jonah,

I have the same problem and it only propped up after i had my exhaust manifold repaired, do you think the mechanic didnt do the weld it right?

James
2001 Saturn L200

Apr 27, 2010 | 2000 Saturn SL

1 Answer

Engine light was on and engine idles rough.


these O2 sensors are cat convertor check sensors. id be checking cat convertors and hopefully you should try replacing if not all ready is the front bank 2, O2 sensor
if you have scanner can you see fuel trims in data display to confirm high fuel trim only on bank 2 either +-5 or more indicates problem and if bank 2 sensor 2 has fixed high 700mv reading cat no good(warm idling)

Jul 10, 2009 | 1998 Isuzu Rodeo

7 Answers

P0171 Code (Lean Fuel Bank 1) Engine light on


you nead to check all you vacuum lines for leaks it sounds like you have a vacuum leak or the o2 sensor is going bad on bank 1 **** i still say vacuum leak

Nov 23, 2008 | 1998 Buick LeSabre

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