Qg18 no power

Car losing power when going up hills and trying to pick up speed. No power. The car is has recently been serviced and had two new sensors. When driving it up a slight incline there seems to be no power to pick up speed and sometimes if you go as fast as 40mph it starts to judder and then loses power.

The engine light has come on again but a test shows nothing major? We are so confused to what the problem maybe. Do you. It sounds like the catalytic converter is clogged causing the issue. Thank you it was the catalytic converter on my car. Was this answer. Engine starts and is running, however engine light comes on and there is no acceleration.

Unable to diagnose the problem, do you have the answer. You will need to start with getting a scan tool and plug it into the OBDII connector, most c xml parser example the generic scanners are good for this.

Let us know what the outcome is, it will give you a "P" code Was this answer. I have a Nissan almera 1. When diagnosed it gives me the codes p and I have tested the throttle unit and the peddle on another similar car and both work fine. This problem started after I replaced the antenna ring on the ignition because it was faulty. Hello, It sounds like you have a throttle actuator that has gone out and needs to be replaced.

Here is a guide to help you see what you are in for when doing the job. Please let us know if you need anything else to get the problem fixed. Cheers, Ken Images Click to enlarge. When it idles it seems like the engine wants to climb up and leave it shakes so much. Any ideas what could be wrong? Here is a diagnostic walk through for your situation. Just follow the link below or paste it in your browser and it will walk you through all the most likely scenarios. The car is going a bit back and forward a lot when this happens.

Car runs great on flat roads but once I start going up a hill this problem occurs.The engine was produced since as substituted of the SR18DE and was discontinued in The engine uses multi-point fuel injection system; variable valve timing system on the intake side NVCT ; electronic ignition system with individual ignition coil for each cylinder; electronic throttle body; intake manifold with vortex valves, ERG system, and three-way catalyst.

The engine is also equipped with a mixture ratio self-learning control system. Redline is 6, rpm. The engine version without variable valve timing system NVCT was also available. The engine has the same cylinder block with QG16DEbut cylinder bore is enlarged to Compression ratio is 9. This system controls the fuel injection, ignition timing and idle RPM as one single control unit.

The ECM controls the injection pulse duration. The amount of fuel injected is a program value in the ECM memory. The program value is preset by engine operating conditions. These conditions are determined by input signals from the crankshaft position sensor, camshaft position sensor, and the mass air flow sensor. The ignition timing data is stored in the ECM, this data forms the map shown.

NISSAN Car Manuals PDF

The ECM receives information such as the injection pulse width and camshaft position sensor signal. Computing this information, ignition signals are transmitted to the power transistor. The QG18DE motor has a cast-iron cylinder block, cylinder bore is The pistons are each fitted with two compression rings and a single oil ring. The compression ratio is 9. The engine uses forged-steel connecting rods with The crankshaft main journal diameter is The engine has an aluminum cylinder head with two chain-driven overhead single-piece cast camshafts and sixteen valves four per cylinder.

The QG18DE has a single timing chain. Intake valves are The QG18DE does not have hydraulic lifters, so special shims are used to adjust the valve clearance.

qg18 no power

Shims are available in 50 sizes from 2. Whenever valve clearances are adjusted to cold specifications, check that the clearances satisfy hot specifications and adjust again if necessary. We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur.

We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs. Good day,am tongai from Zimbabwe. I replaced my head cylinder from qg18de to qg The engine block is for qg Every thing is working, no engine check lights except the noise from the head.

Good night,In my qg 18 engine, if i dont use my car for a day or two, when i go the next day to start the engine wont idle unless i touch the exceleretor pedel slightly and this stops when the engine heats up a little. It would usually cut off if i dont excelerate a little. I adjusted the idle nut by the trottle but it still happends.

Any help or suggestions would be appreciated.The QG18DE engine is the same as the 1. As a result, its displacement is 1. That gave more torque at low rpm. But these 1. The QG18DE uses the same variable valve timing system CVTC on the same camshaft, timing chain, variable geometry intake manifold with valves, cylinder head, etc.

The engine is quite ordinary, nothing special, no high technologies and that is because it will run long mileage smoothly. Nissan QG18DE 1. Engine Specs Manufacturer. Production years. Cylinder block material. Cylinder head material. Fuel type. Number of cylinders. Valves per cylinder. Valvetrain layout. Bore, mm. Displacement, cc.

Type of internal combustion engine.

Nissan Pulsar N16 strange problem

Compression Ratio. Torque, lb ft. Firing order.This engine uses the same cylinder block as QG16DEbut cylinder diameter is enlarged to 80 mm. As for the rest, the engine is the same as QG It has the same cylinder head with variable valve timing system N-VCT on intake camshaft and intake manifold with vortex valves.

Every 60, miles of mileagekm you should regulate the valves on your QG18DE, since it has no hydraulic lifters. This engine uses timing chain. Its life expectancy is not too long, and after about everymiles of mileagekm your car may start jerking and having rough idle. It means it is time to change the chain. Besides, sometimes the coolant may start leaking through idle control valve gasket. And it is still more unpleasant, that the coolant gets right on ECU.

To make the engine working properly, you will need to change idle control valve gasket. High oil consumption is the peculiarity of QG18DE. Usually it is about 1 qt per miles 0,5L per kmbut if your engine has exceeded this level, you should turn to the service center. In general, there is nothing special about this engine, it is typical for such cars. Also QG18DD was produced as direct fuel injected version.

Besides the mentioned faults, this engine may also have other problems. You can know more about them HERE. You can find this number on a special place on the right on the cylinder block. This place rusts often, so not always it is possible to see it clearly. This engine is not the best choice to turn your Nissan into a drag monster. But if you are wonder to know how to make QG18DE faster, then we will tell you of this.

You need to buy headers, performance exhaust system, cold air intake and adjust your ECU.The fuel hose connection method used when taking fuel pressure check must not be used for other purposes. Be careful not to scratch or put debris around connection area when servicing, so that the quick connector maintains sealability with O-rings inside.

Do not perform fuel pressure check with electrical systems operating i. Fuel pressure gauge may indicate false readings due to varying engine load and changes in manifold vacuum. Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pressure cannot be completely released because this models do not have fuel return system. To avoid unnecessary force or tension to hose, use moderately long fuel hose for fuel pressure check.

Do not use the fuel hose for checking fuel pressure with damage or cracks on it. Use Pressure Gauge to check fuel pressure. Remove fuel hose. Apply proper amount of gasoline between top of the fuel tube and No. Insert fuel hose for fuel pressure check until it touches the No. When reconnecting fuel line, always use new clamps.

qg18 no power

Use a torque driver to tighten clamps. Tightening torque: 1 - 1. After connecting fuel hose for fuel pressure check, pull the hose with a force of approximately 98 N 10 kg, 22 lb to confirm high pressure fuel pump does not come off. Fuel pressure gauge may indicate false readings. During fuel pressure check, confirm for fuel leakage from fuel connection every 3 minutes. At idling : Approximately kPa 3. Use the Diagnostic Worksheet during the interview to document the facts and conditions when the noise occurs and any custome Refer to EM, "Exploded View".

Remove rocker cover protector. Mixture ratio self-learning value clear Description This describes how to erase the mixture ratio self-learning value. Work Procedure 1.The QG engine is a 1. Nissan websites state the QG as standing for "Quality and Green". The QG13DE is a 1. Water-cooled straight 4 cylinder engine with 1. Bore and stroke are The QG16DE is a 1. A new water pump assembly has been designed for the QG16DE; the design is based on the water pump from the GA16DEthe changes made it more efficient and reliable than its predecessor.

The 1. It is manufactured both in Japan and the Mexican city of Aguascalientes. The engine is tuned to achieve most of its torque at low revs at the expense of raw power at high revs, making the engine very responsive in day-to-day driving.

It has a cast-iron engine block, aluminum DOHC cylinder head, uses Multi-port fuel injectionforged-steel connecting rodstwo single-piece cast camshafts and a cast-aluminum intake manifold. It was used in the Nissan AD van from to From Wikipedia, the free encyclopedia.

JDM QG18 1.8L Engine For Nissan Sentra 2001-2002

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Archived from the original on Retrieved Nissan Motor Company. Alfa Romeo Nissan Autoveicoli S. Dongfeng Motor Co. HR UD. Categories : Nissan engines Inline-four engines Gasoline engines by model.

JDM QG18 1.8L Engine For Nissan Sentra 2003-2006

Hidden categories: CS1 maint: archived copy as title Webarchive template wayback links Articles needing additional references from November All articles needing additional references.This engine uses QG16DE cylinder block with cylinder diameter diminished to Accordingly, pistons were modified, and compression ratio increased to 9. As for the rest, the engine is the same as QG16DE. In these engines were upgraded. QG15DE engines had timing chain.

Everymiles of mileagekm or sometimes earlier it had to be changed for the new. No hydraulic lifters were used on the engine, therefore every 25, miles of mileage 40, km it was necessary to regulate the valves.

qg18 no power

The engine was produced tilland then it was substituted with HR15DE. From time to time they do not start, have high fuel consumption, make a noise sometimes, whistle, etc. You can learn more about it HERE. The best choice for you would be changing your engine for QG18DE. However, if you need to increase the power of your QG15DE exactly, then buy header, performance exhaust system and adjust ECU soft aggressively. These performance mods will give you about HP and wilder sound.

You should not buy any turbo kits, this small engine I4 will not give you any impressive power. Mitsubishi 4G Honda K20A K20C. Honda K24A K24Z. Honda R18A. Honda R20A. Honda L15A L15B. Honda L13A L13B. Honda D15B D15A. Honda D17A. Toyota 1MZ. Honda F23A. Toyota 4ZZ. Toyota 1AR. No Ratings Yet. Latest Most popular Mitsubishi 4G DOHC 4 valves per cylinder. Engine lifespan, km miles -Official information -Real.

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