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Replacing the injector pump after services

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Late start after head service and injector replacement, already code the injector. it will just start and stop for few crank. n finally start

Hi Ashneel

Sounds like you've had head (gasket) service, and replaced the injector(s), and are getting more injector codes. If you have a code reader (they're pretty cheap on eBay), you can get more particulars. However, you're getting an injector code with a new injector? I'd then suspect:
  1. The fuel system upstream of the injector.
  2. The electronics connecting to the injector.

Hopefully there would have been some basic tune-up work done in conjunction with the head and injector work, but...
  • If the fuel filter hasn't been replaced recently, consider replacing it. A clogged filter can starve the injector for enough gas to inject.
  • How old is the fuel pump? It clearly is working, but if it's on it's last legs and not pumping like it ought to be, again you can be starved for fuel.
  • Have you refilled your gas since the work? It's possible you got batch of suspect gas. You might consider dumping a bottle of Octane boost in to see if things run better (or well enough to burn off the old gas).
  • Your electronic ignition system (or distributor if the vehicle is of that era) controls the coordination of fuel, spark, and crankshaft position. Check the wiring to the injectors at both ends to make sure there's not a loose connection or cable patch. Check the fuse and or relay for the fuel pump and EIS.
It's also possible that fuel is a red herring, and you might have a really dirty air filter, or fouled/poorly connected spark plugs.

Hoping this helps you narrow it down!

Nov 24, 2015 | Cars & Trucks

1 Answer

Desiel injector pump is failing to open the nozzles in the combustion chamber

Hi the only way the injectors would fail to open is iof you have low pump pressure. check the fuel filters first. replace them if you have not done so before. There should be a water trap filter and then a fine filter,replace both. They should be replace at a regular service intervals.

Mar 03, 2015 | Cars & Trucks

1 Answer

HI,I have an Opel Combo Year 2000,.The engine does not start at all,trying to repair by different mechanics without simply does not start though the fuel pump and valves has been serviced.

If the pump has been removed for servicing then I would say that the pump injector timing is off. It has to be set on injection mark and not tdc.. Have a professional injector mechanic check the timing.

Apr 23, 2013 | Opel Combo Cars & Trucks

1 Answer

Can a fuel pump relay cause poor gas delivery

NO, the relay will either work or it won't. (Unplug it and look at it; if the terminals look corroded... replace it.) Most cars have fuel injection systems these days. In addition to the fuel pump that pumps fuel out of the gas tank... there is an injection system pump which is quite expensive. In order of operation: 1) have your injectors cleaned or replaced as needed (new ones run about $30 each), 2) have the injection system pump pressure checked and get a rebuilt pump if needed (brand new one ~$850), and 3) check the fuel pump. If the car has more than 80K miles on it, then suspect clogged or partially obstructed injectors. A BOSCH SERVICE CENTER has a machine to test and clean most makes of injectors. At the same time, replace your fuel filter and use good gas when you fill up. NEVER fill up from a station that just had a fuel truck delivery (if you see the tank truck) as the garbage on the bottom of the tank takes a day or so to settle back down again. Magneti Marelli Check Star also offers good injection system servicing. The dealership should be your last resort as they just replace parts until the problem goes away... leaving you with a hefty bill and a bag of old parts

Aug 27, 2012 | Cars & Trucks

1 Answer

Hi. I have mazda drifter wl turbo 2,5 diesel. Cam belt snapped and broke 2 valves. I replaced the complete head and serviced the pump and replaced new injector nozzles. Also did big ends and small end...

incorrect ignition point for the injectors
diesels ignition point is around 22 degrees btdc for pumps or from the crank sensor if common rail ( information of year or pump or common rail not included )
if it is a pump with pipes to injectors , you have the timing incorrect

Jul 02, 2017 | Cars & Trucks

1 Answer

Its actualy a 1kz 3.0 litre turbo deisel had water in fuel injector pump required replacment so replaced with s/h one off running engine reasembled engine injectors where supost to be serviced units...

Im wonderin if some of that water got into the cylinder area and bent a rod ruining the compression--did u ride thru a flood zone--mite want to do a test--also scan vehicle and test injector pump off engine

Aug 26, 2010 | Toyota 4Runner Cars & Trucks

2 Answers

Same Problem !!!!! vijay from chennai...i run a autorised car service centre in chennai india...we get a lot of fiat palio's with the same problem...but the real trouble is in the sensors located inside the fuel pump...those malfunction and require replacement...we have successfully solved lot of problems related to fuel pump in our can conact us for any issues...but only request is to bring the car over to our place and get it repaired...what ever we do will be covered under a warranty of 1 no cause of worry...our contact details are 98840

Jul 21, 2009 | 2007 Fiat 124

5 Answers

Dodge cummins won't start, fuel reaching injector pump but no fuel coming out of injector pump.

You said you have fuel flowing from the inlet line of the injection pump? But not at the injector lines?

May 05, 2009 | 1999 Dodge Ram

1 Answer

200 sx not getting fuel to injectors

It could be a bad fuel pump or wiring to the fuel pump, but it could also be a clogged fuel filter. If the fuel is getting to the injectors but not into the engine, the injectors may be clogged and in need of replacement. There are repair manuals that can help you find and replace your fuel filter, which should be replaced at regular intervals (depending on your service schedule), and these manuals can be found at the library or auto parts store. The most common manuals I know of are Chilton and Haynes. Both are made for your exact vehicle and have the steps to fix any problem, down to a complete tear-down and re-build of your car (including injectors).

Mar 01, 2009 | 1995 Nissan 200SX

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