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Fault Codes P1186, P0087

This vehicle has had a s/hand engine complete fitted, done aprox 2k since fitting no problem so far! then started going into limp mode with no mil light, scan vehicle fault codes P1186/P0087 logged, low fuel pressure and low fuel supply,wont rev above 3k, have changed fuel filter again as new one installed when engine fitted, no cure, checked filter in tank clean as whistle, am thinking to change inlet metering valve but as not an easy job, also when in limp mode but still driving at 70 plus engine shuts down, pull over switch off fires up instantly and no limp mode until the next time! any suggestions

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

RamTek
  • 377 Answers

SOURCE: engine misfires badly after cruising a while at 3k revs,

Try to check the computer box and check if it is working and check the timing belt as well make sure it is properly tune up.

Posted on Jun 09, 2009

  • 34 Answers

SOURCE: volvo xc70 in limp mode 7 fault codes recorded d5

Possible problem with the alternator not putting out enough voltage. I had the same problem with my 2002 XC70, putting in a new alternator fixed it. I used a local mechanic who I found on the car talk web-site. Low Cost Volvo parts can be purchased at FCP Groton.

Posted on Aug 11, 2010

TDISLine
  • 1874 Answers

SOURCE: i have a toyota hi

You need to access the Engine Control Module (ECM) using suitable diagnostic equipment connected to the data link connector of the car in order to pull out all Diagnostic Trouble Codes (DTC) memored. Then you will be full informed about bad components and you will be able to repair & replace bad pieces. and reset the ECM.
I suspect that in your case the turbocharger is responsible for engine losing power.
The car goes in "limp home" mode!!!
1. Engine stopped and ignition switch off. Check all pneumatic connections and hoses between turbocharger actuator = pressure unit for boost-pressure control, boost-pressure control solenoid valve, vacuum reservoir, EGR control solenoid valve, intake-manifold flap solenoid valve, EGR valve with throttle - part of intake manifold. Also the vacuum connection between tandem pump and brake booster. If you find something wrong replace parts. If not go to step 2.
2. Extract the hose of the turbocharger actuator = pressure unit for boost-pressure control part of turbocharger. Instead of the original hose you must place another 1 meter long hose with the same inside diameter, and then you check to inspire yourself the air from the other one extremity of this hose. The mechanical connecting rod of the turbocharger actuator must have a smooth and whole motion. If you can do that with your mouth, then you must replace the boost-pressure control solenoid valve. If you can not reach this with your mouth, then you go to step 3.
3. This is the most difficult work. The problem is that the soot particles deposits inside the turbocharger plugging the variable nozzle geometry mechanism = adjustable vanes of the turbine. If the turbocharger actuator is not able to adjust the turbine vanes the charge air pressure increase too much and ECU (engine control unit) go in "limp mode" = engine protection software. As a result the "limp home" mode engine still running until you turn the engine off (ignition switch off) and back on when the "limp mode" is deactivated, but the fault still remain in ECU memory!
4. You must be able to extract the turbo from the engine and then to disassemble the turbocharger, clean inside adjustable vanes mechanism and refit all.

Posted on May 01, 2011

  • 457 Answers

SOURCE: HYUNDAI TUCSON 2006 POOR IDLE / WON'T REV

On many diesels, when I read codes they mention an egr valve, but what they are really talking about is the throttle actuator. What I don't understand is why you no longer have any codes. there are some codes which do not turn on the light on the dash because the computer hasn't decided yet that it is a hard code, so check for them anyway. The symptoms you are describing usually turn out to be either the throttle actuator, fuel rail pressure regulator, or a ripped turbo hose

Posted on Mar 06, 2013

  • 4 Answers

SOURCE: We have a Subaru Legacy GT, Twin Turbo 93, the car

try to change the ignition coil and if still not working then try the computer box or ECU

Posted on Apr 03, 2013

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What is better to rebuild an engine or buy a used and how much cost to do this any aprox. In price


You are better off rebuilding the engine if you intend to keep the car, the engine may last far longer if it is looked after and there are no unforeseen incidents. If you are selling a car then fitting a used engine can be cost effective, if you shop around wisely you can find a good engine for a reasonable price. Some buy salvage/donor cars to sort their own vehicle out from insurance auctions/salvage sales.
Rebuilding is usually more expensive but I would far rather have a rebuilt engine than a used one.
The thing with used units is that you cannot usually tell how well they have been maintained.
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What parts do you recommend for a fault on my Hyundai Tucson which has developed faults?


uh oh, 1186 and 0087 are both related... fuel pump or the filter or both! either case the filter is now located inside the fuel tank

P1186 Hyundai Fuel Pressure Too Low


P0087 Fuel Rail System Pressure Too Low

"Potential causes of a P0087 trouble code may include: Weak fuel pump, clogged filter or screen, restricted fuel supply line Faulty fuel pump driver module Faulty fuel pressure sensor"


How to Change the Fuel Filter on Hyundai Tucson eHow

according to eHow, you can access the filter relatively easily. (although the pic is an illustration of something not really related to this ~ why they showing a fuel petcock that's not even on your car?)

P2112 Throttle Actuator Control System Stuck Closed

"Possible causes:
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older models we had the gas pedal attached to a cable to move the butterfly valve on the throttle body. Now it's this newer drive-by-wire stuff... remove air intake hose and check / clean / move the throttle body valve by hand first to see if it's binding or not

then, go from there on testing the actuator and tps

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1 Answer

P0313,p008A,p0087 . I don't understand this codes from my Lr4 2010


code p0313 refers to misfire detected---low fuel level===causes-- fuel system ---mechanical fault ( check fuel pressure, fuel filters and fuel pump)
code p0087 refers to fuel rail /system pressure --too low=== causes --fuel pump,--fuel pressure regulator--fuel supply line blockage--mechanical fault. ( have the fuel system pressure tested.)
The code you have listed as p008A is not in the book and you have not given an make or engine model to refer to in other places. I will refer to the code as p0084 which refers to exhaust valve control solenoid, bank 2--circuit malfunction===causes --wiring--exhaust valve control solenoid---ECM ( this will present as a rough running engine or problem starting/ shutting down

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1 Answer

1996 sonata rough idle


The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

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1 Answer

My Mazda 6 2.0 Diesel runs rough between 1-2k revs and idles slightly erratically. No loss of power ,never stalls,always starts ok. Terrible to drive at low revs because of the shudder.


The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems.


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1 Answer

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Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

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1 Answer

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http://www.fitfreak.net/forums/fit-yourself-discuss-do-yourself-repair-maintenance/21034-complete-obd-ii-codes-list.html

for OBD1
http://www.gmtuners.com/OBD1_DTC.htm

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1 Answer

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