Questions tagged [fuel-injectors]

A device that meters the proper amount of fuel into an engine cylinder. It is controller by the engine control computer.

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Ford focus 1.6 diesel

Iv had 4 injectors replaced on my focus it ran fine then starting juddering. I took it the garage and they said that one of the new injectors had failed so we replaced that one again. It now runs ...
Wayne Druse's user avatar
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Stuttering, chugging, dying on heavy acceleration (2002 Impreza 2.5L)

I'm fixing up an old 2002 Subaru Impreza (2.5L), and the only problem left is that on heavy acceleration, such as up hills, the vehicle chugs and stutters a lot, even comes close to the engine dying. ...
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Excessive leaking from injectors

I changed the timing chain and tensioner in a 1.6hdi diesel, so twin camshafts has a timing chain and tensioner connecting them. The chain didn't break rather it slipped 5 notches. The repair seemed ...
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injectors: CA and Fed types not interchangeable?

'07 Cobalt, 2.2L Ecotec; CA emissions spec (RPO L61) I inadvertently tried to install a Fed-emissions spec injector in our CA-emissions engine. AFAICT, it would not seat properly in the intake ...
George's user avatar
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2016 Subaru Forester - gas and oil - aftermath of a long roadtrip

Before heading out on a 2+ week, 5000 road trip, I brought my 2016 Forester (50k miles at the time) in for new brakes, an oil change and an inspection for anything else that might need to be looked at....
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Where is the fuel pressure test port located on the 2012 Dodge Grand Caravan?

I purchased the Innova 3640 Professional Fuel Injection Pressure Tester, and I want to test the fuel pressure on my 2012 Dodge Grand Caravan. Where is the fuel pressure test port located under the ...
Cody Kentucky's user avatar
4 votes
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121 views

Confirming Head Gasket Only Culprit

Model: Mercedes Vito 638 108 CDI, 2.2L, 1999 Mileage: 270,000 Km. My exact question is: Does my head gasket need to be replaced (is this the source of my problem), and is this the ONLY problem ...
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How to measure engine's fuel consumption?

I know this question might not be new, but I am still asking this question as I haven't yet got any satisfactory answer to this. I have done quite a research on this topic and will sum up it here: To ...
Jignesh M. Khatri's user avatar
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Ford figo 1.4 ambiente 2013 petrol model no pulse on my injectors

Hello I have a ford figo 1.4 ambiente 2013 model, I have done all the diagnostic without the diagnostic machine, the spark is there the fuel pump it's pumping, the problem is that I don't have fuel ...
Allen Slaice Mahlangu's user avatar
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Cat 7 HEUI pump failure incidence rate

Not exactly a car engine, but I am wondering if anyone has seen any statistics or guidance on Cat 7 HEUI pump failures? The pump compresses engine oil which is then delivered to the diesel injectors ...
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Engine shaking at low rpms and injector correction values all over the place

My neighbor has a 2010 Peugeot Partner II turbo diesel ( Same engine as the Citroen Burlingo ) he's been having problems with. Background: Car was idling poorly, smoking, sputtering and had no power. ...
Robert S. Barnes's user avatar
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2013 Chevy Malibu LT 2.5L

I saw your message about "don't go looking for trouble..." I replaced my MAF 1.5 yrs ago along with the intake and exhaust VVT solenoids after codes p0013 p0014 would pop up. It ran ...
Ashleigh's user avatar
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05 VW Passat Turns over, won’t start

this car has been a problem from the beginning... engine light on, codes say misfire. Started overheating so I replaced thermostat. Still had hardly any power or acceleration, engine light flashes a ...
Ashton's user avatar
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Daihatsu Materia 2005 model 1.5 engine smother while driving

we have a Daihatsu materia 2005 , we replaced the plugs,cam sensor , petrol pump, body sensor, air intake temp and catelis converter. The car drive fine when cold, but after a few kilometres it doesn’...
Roosmarie Trindade's user avatar
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1 answer
193 views

Leaking fuel injectors on Buick 3800 SFI engine

My 1993 Buick LeSabre 3800 seems to have one or more leaky fuel injectors. During idle, especially when fully warmed up, it idles chuggy, like extra rich or flooding. If I shut it off during idle, it ...
John Canon's user avatar
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Lowest Fuel trims achieved only in the 1200-1500 RPM range?

This car still driving me crazy. I wrote here before about getting the code P0171 and some suggested a vacuum or exhaust leak. I sprayed some flammable connector cleaner around the intake manifold, ...
Flamenco77's user avatar
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2012 Great Wall V200 Turbo Diesel injector coding

I have recently installed second hand injectors. I have software to reprogram the injectors into the ECU. However, it continues to come up with an error when I enter the new injector code. I have been ...
Tyler Haddin's user avatar
1 vote
1 answer
37 views

Wrong injectors in 2 ports

I have a 2015 Cadillac Escalade luxury 4wd with 6.2 regular gas. I changed 2 injectors but by mistake the 2 i installed are high flow and the correct one should be low flow what is the worst that csn ...
Daniel Ramos's user avatar
2 votes
1 answer
183 views

Why doesn't polarity matter for fuel injectors?

Why doesn't polarity matter for fuel injectors? If they are essentially a solenoid, then it seems it would matter; swapping polarity would change the direction the electromagnet pulls or pushes.
Geremia's user avatar
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How to release fuel injectors from Volvo T5 engine?

How does one engage the release mechanism for the fuel injectors on a Volvo T5 engine? The spring clip doesn't seem to respond to any tugging so far and I don't want to break it. Here's a side ...
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Chevy Blazer 4.3 with p0303 error (cylinder 3 misfire) shortly after running medium-hot: now wonky idle, but smooth at high RPMs

I've got a 97 Chevy Blazer with the 4.3 and 281k miles. It might be of-note that a shop replaced my Lower Intake Manifold gasket about 18 months ago. At the very end of a long trip this weekend it ...
elrobis's user avatar
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2 votes
2 answers
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Do petrol injectors need to be coded after replacing?

I have replaced petrol injectors on my Insignia A16XER with probably new one from China, but now car is not stable at idle and randomly increase revs. I am not sure if new one are defective or they ...
Ľubomír's user avatar
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How change methane injectors on Zafira 2004 CNG engine?

What is the process to change CNG injectors on a 2004 Zafira? What has to be disconnected?
David Jonsson's user avatar
2 votes
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Diesel leak by fuel injector on Volvo V50 2007

So for a time now there has been diesel undeneath the fuel injectors. Could this be a simple o-ring seal gone rogue? Or a destroyed copper washer? There seems to be a little puddle of diesel by ...
AkASlow's user avatar
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1 answer
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Does anyone know the style of connector used on Ford CFI throttle body injectors?

I am trying to find the part number on a connector for the injectors used on Ford's throttle body injection. This connector is on a Bosch injector made for Ford's CFI throttle body injection used on ...
charkear's user avatar
1 vote
3 answers
830 views

How do paired injectors work?

I'm currently in the process of searching for a cheap standalone ecu, but the main limitation of them is the fact that they have only 4 injector outputs. I have heard and read in the ecus ...
Flexor's user avatar
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Question about aircraft engine injector system

i was recently working alongside an aircraft mechanic on a turbocharged 6 cylinder fuel injected engine (a Lycoming TIO-540 if your curious) and the complaint from the customer was that it would ...
Lars's user avatar
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1 answer
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Where is the injector circuit on a 2007 Toyota Yaris?

I have the PO201 error code which appears randomly every 30Km to 50 Km. The issue sounds possible as the car ran 2000Km with a damaged spark in cylinder 1 before repair. However, they are no circuits ...
user2284570's user avatar
3 votes
2 answers
187 views

Rebuilding EV1 Injectors

I recently bought the parts to rebuild EV1 (34.6# @ 43.5psi) injectors. The parts include the microfilter, flat support disk (for the injector end), and the supporting top cover (for the fuel rail end)...
Pᴀᴜʟsᴛᴇʀ2's user avatar
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1999 Chevy Suburban 5.7 - What is "Valid Reference Pulse"

Searching google for that exact text in quotes (what the scanner shows) yields basically no results. What does it refer to? For some context that lead to this question, I'm not getting my injectors ...
Brian Leishman's user avatar
4 votes
2 answers
3k views

Calculating fuel flow rate through obd || sensor not supporting 015E and 0110 commands

I have been working on a project where i want to calulate fuel flow rate using data from the obd2 sensor. The car on which i was testing didn't support the pid 015E which is for fuel flow rate. Then i ...
With A SpiRIT's user avatar
1 vote
0 answers
594 views

Diesel engine struggling to start when cold

I have a 2.7D Ford AJD-V6/PSA DT17 diesel engine, on which I recently replaced 3 fuel injectors (all 3 of them were leaking). After the injectors were replaced, I now encounter the following problem: ...
mariusmmg2's user avatar
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Replacing diesel injectors

Two weeks ago, I purchased a 9 year old, second hand Ford Fiesta from a UK used car dealership. It's done 58,000 miles, has a full service history and has had a recent MOT. After the first week, one ...
Sam's user avatar
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2 votes
1 answer
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Injector leaking/seeping clean diesel over nut/body

I've got a 2005 Mazda 3 (ford inside), engine DLD-416/DV6/MZ-CD 1.6 Diesel, 109 PS. When I was blanking the EGR valve I saw some diesel surrounding the injector bases on all the four injectors. The ...
emirjonb's user avatar
2 votes
1 answer
2k views

Volvo V50 felt like it was stalling while accelerating then engine stopped

So I bought a Volvo V50 about half a year ago and have been having some issues with it lately. The one problem that has been recurring is that often the engine has very little power. By little power ...
AkASlow's user avatar
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1 vote
1 answer
501 views

Are these fuel injectors leaking? How to fix?

please advise me if these 2 fuel injectors are leaking? If so, how to fix it? My car is Toyota Matrix 2010 (103,000km). (photos below) Thanks.
alessio2110's user avatar
1 vote
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53 views

Leaking injectors

How long would it take to damage a diesel motor where oil is diluted heavily with diesel,due to leaking injectors,engine made clunking sound and masses of black smoke poured from exhaust, service ...
Bill's user avatar
  • 11
3 votes
1 answer
420 views

Diesel Injector Well full of Carbon

While looking over my friend's 08 Kia Carnival J3 2.9L Turbo Diesel, I noticed a strange huffing noise. After removing the decorative engine cover I discovered this: This injector well is filled ...
Robert S. Barnes's user avatar
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241 views

Car Jump Started in wrong way

We switched the jumper cables when trying to jump start my Altezza 4 cylinder. Main fuse and other fuses were blown. I replaced all the damaged fuses and battery. When we eventually got the car to ...
Gots's user avatar
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1 vote
0 answers
292 views

Diesel van not starting in hot weather

I have a self-built motorhome, Renault Master, 2003, with about 100k and a G9U engine, which does not start when I park it in the sun in the hot weather. Part of this is due to the immobiliser ring ...
Leonardo Seccia's user avatar
2 votes
0 answers
29 views

Help maintenance & repair

06 Pontiac g6 will not start! I recently changed fuel pump. I am getting fuel to the fuel rail with pressure but fuel injectors are not opening. I can pour gas in the breather and it will start until ...
Katie dubose's user avatar
1 vote
1 answer
218 views

Running fuel injector outside the engine

I want to use an arduino I have lying around to make a fuel injectors tester/cleaner. It looks pretty simple, just connect the injector to a battery and the pin that goes to the ECU to a pulse ...
maielsi's user avatar
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0 votes
1 answer
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Number of diesel injections per revolution

A modern TDI using a piezoelectric injector may have up to as much as five injections per power stroke as far as I've read. Given a four stroke, four cylinder TDI engine using injectors of that type, ...
Erik's user avatar
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1 vote
1 answer
63 views

How can I clean out bad fuel from my diesel engined VW Transporter?

How do I clean out bad fuel from my VW transporter TDI, and also clean the injectors. Can I do this myself? Edit: Dirty/water fuel not incorrect fuel. It’s dirty...
Julie's user avatar
  • 103
2 votes
0 answers
214 views

USA vs Europe fuel injector differences?

This question is out of curiosity as I didn't find any specs or datasheets after plenty searching. What would the differences in the fuel injector be for Europe vs USA markets? I've compared ...
ajayel's user avatar
  • 474
1 vote
2 answers
576 views

Can fuel trim (LTFT) be too high or too low? Not using stock injectors

Application is a '97 Jeep Cherokee 4.0L straight-six I installed EV6 fuel injectors to replace the outdated EV1 injectors. The new ones are slightly higher flowing I think. old: 23.2 lb/hr @ 49 psi ...
Dan Mantyla's user avatar
1 vote
0 answers
321 views

High concentration fuel detergent effects on oil

I just did an oil change. I was planning on putting some fuel detergent in the tank and run in through before the oil change but forgot. Can I still put it in now without having negative effects on ...
Scorb's user avatar
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2 votes
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217 views

Car keeps breaking fuel injectors?

Ok so i'm having quiet a strange issues with one of my cars (08 X5 E70 4.8L V8) that may be worth discussing. It seems to keep "blowing" through injectors on only one bank. Suddenly i noticed CEL and ...
roycerobinsion's user avatar
2 votes
2 answers
15k views

Leaking fuel injector

If the body of a fuel injector is leaking (allegedly) and flooding a spark plug, there is any chance of fixing it cleaning the injectors or do I have to replace it 100%? How can I determine which ...
Rhinoted's user avatar
1 vote
0 answers
38 views

fuel injectors in a 2003 Cadillac Deville

What determines when your fuel injectors need cleaning? My car is emitting white smoke when pressing on the gas petal after stopping at a traffic light.
Parris's user avatar
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