Check engine warning/EGR - Alfa Romeo Forum
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(Post Link) post #1 of 13 Old 12-07-09 Thread Starter
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Check engine warning/EGR

I ve blanked off my EGR, but that bloody light comes back on after I turn it off! Anyone know how to keep it off with a blanked off EGR?
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The only way to do it is through the ecu software!
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(Post Link) post #3 of 13 Old 12-07-09 Thread Starter
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Yeah I know I have but it still comes back on after driving for 1 min!
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You have done what?rewritten the egr map in the software?
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Do you have 3 pins or two in the EGR connector? If its got three the ECU knows the valve isn't working properly and if it's only got two pins maybe the system monitors the resistance of the solenoid? So whilst blanking it off returns the power to normal you can't fool the electronics that easily.
 
(Post Link) post #6 of 13 Old 13-07-09 Thread Starter
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Right, I see, I ve got to actually rewrite the software
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blanking off the egr is not really a good idea? especially if u have a vgt turbo? what is your make/model?
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1.9 JTD 16v, lots of other people have done it. Most people report few probs-Have heard that it can cause oil to be sucked post the o rings, but I ve not experienced any probs.
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If it has a vgt turbo as on grande puntos and BMW etc don't blank it off no matter wot.
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Lol, theres not enough info in that sentance as to why not etc
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sorry, im eating sticky toffee pudding. if its a variable geometry turbo (VGT) the ecu will be mapped for the egr valve to work. basically, fuel,timing,boost, air intake are all mapped accordingly. boost pressure is used to determine an egr rate. you could shorten the life of the turbo, and fuel consumption will change. its quite complex mapping these. i had a grande punto sporting multi jet diesel and i was having problems with it and thought about blankin the egr off at one point but decided not to run the risk. i confirmed my suspicians with the chaps at work and they said deffinately not to. (i work building prototype diesel engines for future emmision legislations). Egr IMO is a load of Balls IMO to reduce part of emmisions, but a diesel would run loads better without but current laws force engine manufacturers to reduce emmisions. and this is one way. same as DPF filters. load of balls too. more to go wrong and make your car run ****e,and for what? lower emmisions!
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(Post Link) post #12 of 13 Old 15-07-09 Thread Starter
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Why is reducing emmissions a load of balls? You think pumping out a load of cr*p into the atmosphere is good? I know emissions regs have made you guys work hard over the last 30 years and theres always a power reduction at first. But you soon find ways round it and after a few years power levels exceed what they were before the regs were introduced. Cars have never been as powerful as currently, but theyve never been as clean either. Cant see thats bad. Can see you might get annoyed with your work load though.
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not annoyed it keeps me in a job! just engine developers rush to meet emissions legislations to meet certain deadlines (which they have to) or lose out to competition and as a result can cause problems. like we experience. i dont think pumping crap into the air is good but the diesel engine owners as comuters is a drop in the ocean compared to other polutants, and compared to most petrols. it would make me happier if the likes of egr valves and some DPFs on modern diesels were a part of the service we pay for at it should be a servicable item. and we would have less problems.
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