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(Post Link) post #1 of 11 Old 31-05-09 Thread Starter
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running lumpy t spark

my 156 is running great but when driving its lumpy under acceleration, i had a similar problem on a mazda and turned out to be o2 sensors, ive just fitted a new engine and it was perfect in other car, its not much of a problem just anoying, cars a 2001
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my 156 is running great but when driving its lumpy under acceleration, i had a similar problem on a mazda and turned out to be o2 sensors, ive just fitted a new engine and it was perfect in other car, its not much of a problem just anoying, cars a 2001
could be MAF related,most of the running issues iv had were the MAF on my stilo, 147, and my 156, and all were slight hesitations under acceleration, bloody things
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(Post Link) post #3 of 11 Old 31-05-09 Thread Starter
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ill give it a try, ill unplug it to test it, when going quick u cant notice it, its just when doing 30 to 40 its stutters a little, if u accelerate its better but does seem underpowered
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(Post Link) post #4 of 11 Old 01-06-09 Thread Starter
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the maf has made a lot of difference, much quicker and smoother, but still does it a little, seemed better without an air filter
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it will still do it disconected as it will sent the ecu into a default mode, but try the cheapest first and change the airfilter, if its filthy. then my next point of call would be a new maf, but not a cheap one off ebay unless its a propper bosch one

and then go from there
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(Post Link) post #6 of 11 Old 02-06-09 Thread Starter
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new air filter and maf still there but better, my gtv used to do it but gradually went away, ive looked at some old posts and it looks like other people have the same problem and cant sort it
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new air filter and maf still there but better, my gtv used to do it but gradually went away, ive looked at some old posts and it looks like other people have the same problem and cant sort it
injectors would be my next step, but id also get stuck on a diag machine, in particular a portable one, that can read on the move, too see if there is anything strange going on, which there is

could be a number of things, but once the obvious have been done, it then starts to get expensive without the oppinion of an expert, which i aint
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(Post Link) post #8 of 11 Old 03-06-09 Thread Starter
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i just put a set of coil packs in it, and it seems a bit better again, seems to splutter slightly if holding the revs at about 2 thousand, my gtv does seem to be the same, think ill get a code reading done at some point
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i just put a set of coil packs in it, and it seems a bit better again, seems to splutter slightly if holding the revs at about 2 thousand, my gtv does seem to be the same, think ill get a code reading done at some point
ha, forgot about the coils,changed the plugs?

and why is this only me and you, were is everyone else?
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(Post Link) post #10 of 11 Old 04-06-09 Thread Starter
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ha, yea thanks for the replys, seemed great today all ive done is new coil packs and unplug the egr valve, did not do it at all today
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egr valve?
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