Graph showing fuel outputs of injectors

 

Try some second hand injectors that are correct first. Always fit the correct parts otherwise you’ll be going round in circles trying to get this part working with that part etc.

 

Try some second hand injectors that are correct first. Always fit the correct parts otherwise you'll be going round in circles trying to get this part working with that part etc.

Previous owner fitted them ,what he done is replaced 3 bad injectors with 504z left 1 501z in when he realised he fecked up had it mapped instead of replacing injectors,I found out 6 month after owning car ,it started that hot start issue so took it local jag indie for reflash , after the reflash it ran like a bag of nails bloke at the Jag indie said it had been mapped ,anyhow took it home did leak back test injector 2 was pissing out so took it out and discovered it was odd compared to the other 3 so replaced with another 504 so there was full set but it's been as described since ,runs smooth as silk general driving its only an issue at start and idle,I read thread on here stated they were interchangeable but according to what I've read on the Ford forums on same issue they aren't said they will work in a fashion as the fuel map would be different makes sense really my ecu is expecting more fuel at idle and start so it's not going to run right mid range is more or less the same so no issue there,I've seen a set of second hand set of 501s for £120 supposed be tested but taking a chance ,don't know whether just live with it or get it mapped with price of diesel getting it mapped probably be more cost efficient as it should be better on fuel.

 

You won’t see better economy if you get more power, the power has to come from somewhere.

If it was me I would return it to standard to ensure it’s running right.

£120 sounds a lot but by the time you’ve had mapping etc it will probably be more.

You could also sell the other injectors and get something back.

 

True the injectors I've seen still have original stickers on ,not been reconditioned so any ones guess how long they have left ,there is a German company advertising a set of reconditioned 501z for £252 they have 100% feedback all depends on what you call reconditioned some just put new nozzles on them lol ,was going see if P F Jones would do some sort of deal on mine ,getting them coded not a problem my mate got delphi software on his laptop cost me nowt

 

I got a set of 4 from that German company - Diesel fix Neuss I assume you mean. They came with full calibration certs and new programming ID's so a proper job. You do have to pay them Eur 50/injector core charge but they sent that back OK once I sent them some cores - which was about £10 in postage.
Going to put them on next week once I have gathered some 'scope data from the old ones for comparison.

 

That's the place I've seen them ,let us know how they go ,PF Jones want £400 for set of recons

 

per injector. Don't know why it's not in the ad, all the feedback moans about it !

 

Yes just says deposit in add nothing about price