Question about 2010 Hyundai H-1 Travel

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We rebuild the pump and injector scand agian no codes now but still malfunction

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You're problem is what's telling the injectors to fire.

Posted on May 14, 2014


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92 grand caravan 3.3L starts up and stalls possible causes would be?

code 27...injector control circuit malfunction ! The wiring is open or the computer is bad . There are videos on youtube checking injector control circuits and the driver inside the PCM/ECM -engine computer . How to test fuel injector circuit with basic tools open control wire

Jan 27, 2017 | Cars & Trucks

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Hello I have a Toyota Tacoma pre-runner 2004, and I have a codes P0300: CYLINDER MISFIRE DET...P0301 and p0302, cylinders 1and 2 are misfire can I fix it or do I have to rebuild the eng.?

I would suggest that an engine rebuild is the absolute last resort .
misfires can be from electronic control or injector problems
injector problems can be from ecm control but are more often dirty injector tips or low fuel pressure in the fuel manifold from bad pump or faulty fuel pressure regulator
it can be from a venting problem in the tank system but as that code is not up I would have a pressure test done on the fuel manifold to see if it is a regulator or pump problem
it can be plugs (not often) but can be faulty HT leads (touching each other) , moisture in the leads insulation, distributor cap or coils if multiple coils
if it is mechanical suck as valves or valve seat inserts , this can be checked with a compression test but if that is the case would need a head rebuild only
o I would concentrate on fuel pressure first, injectors rebuild second and by then you should have fixed the problem
try using a water disspersent (WD- 40 or the like ) all around the plugs ,leads ,coils to remove any moisture

Sep 13, 2015 | Toyota Tacoma Cars & Trucks

1 Answer

What is code P0251 on a mitsubishi canter with 4m51 engine. diagnostic tool used is autel

code p0251 refers to injector pump A, rotor/ cam circuit malfunction===causes wiring--injector pump--ECM

May 13, 2014 | Mitsubishi Pickup Cars & Trucks

1 Answer

Obo scanner gave me these codes p0171, p0201, p0202, p0203, p0204, p0321 and it wont start? please help i noe what the codes mean just dont noe what to go for

I will give you what the codes mean and you can then work out what to replace.
code p0171 refers to system too lean--bank 1===causes intake / exhaust leak---AIR system---MAF/VAF sensor---fuel pressure/pump---injector/s---HO2s
code p0201 refers to injector 1--circuit malfunction===causes--- wiring--injector ---ECM
code p0202 refers to injector 2 --circuit malfunction===causes --wiring---injector--ECM
code p0203efers to injector 3 --circuit malfunction===causes---wiring--- injector --ECM
code p0204 refers to injector 4 --circuit malfunction===causes ---wiring ---injector ---ECM
code po321 refers to crank shaft position (CKP) sensor/engine speed (RPM) sensor---range / performance problem===causes---air gap---metal particle contamination---insecure sensor /rotor --wiring---CKP/RPM sensor.

Jan 05, 2014 | Audi TT Cars & Trucks

1 Answer

What do all these codes mean PO135-PO300-PO404-PO102-PO440

po135 is o2 sencer on drivers side. will be the first one. po300 is random/multiple misfire.po404 is a egr code. po102 mass air flow circuit low input. po440 evap emission control system malfunction

Dec 23, 2012 | Cars & Trucks

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P1211 injector control pressure higher/lower than desired while running P0251 INJECTOR PUMP FUEL METERING CONTROL MALFUNCTION

P1211 injector control pressure higher/lower than desired while running P0251 INJECTOR PUMP FUEL METERING CONTROL MALFUNCTION

Jul 28, 2011 | Ford Focus Cars & Trucks

1 Answer


A.I.R. pump, most likely a bad pump. water in the sytem usually makes the pump go bad, so replace the check valves also.

Aug 26, 2010 | 2002 Chevrolet Impala

1 Answer

Have a 96 tahoe 5.7 replaced the fuel pump,harness,filter and relay got it to work again now it isnt getting fuel to the plugs is it possible the injectors have gone bad?

Fuel Injectors possible, however the problem may actually be with the Fuel Injector Pressure Regulator.
Before deciding if it is the Fuel Injectors Check this first. This could be clogged or malfunctioning.
The Fuel Injector Pressure Regulator is available at:
(NO! I do not work for either store/company)
Autozone Part #800-315 for around $45.
Advance Auto Part #217-3074 for around $90.
Advance Auto Part #23043 for around $46.
Adavance Auto REBUILD KIT Item #9710 for around $29.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at!

Feb 18, 2010 | 1996 Chevrolet Tahoe

1 Answer

Jeep will just die going down doad or will not start, had a code that read camchaft sensor replaced that still the same, now i have a code that reads injector circuit malfunction i mhave changed fuel

That sounds like a bad grounding wire, or possible PCM malfunction. Check all engine wiring harness locations for any corrosion or damage. let me know what engine type you have, and I could look up the wiring schematics

Apr 25, 2009 | 2000 Jeep Grand Cherokee

1 Answer


get code check for any trans codes...sounds like front pump though...internal issue mechanical..need at least partial rebuild to remedy

Oct 21, 2008 | 1997 Ford Escort

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