engine trouble what should I do

[ash p]

I have recently added a few bits toy glanza I have put in a decat and dumpvalve manifold ported and jam ecu for some reason it was still restricted in revs so I was told to take of the after market fpr and put it to stock having done that resetted the ecu run it in the car now judders in 123 gears then all of a sudden I get a large amount of boost what can this be?

[ash p]

Anyone?

[5e colin]

could be a milion thins but first of does ecu match car ????? there is diferent generation ecus in each model

[ash p]

How would I know is there a code on the jam ecu

[aaddzz123]

A lot of people are mistaken to believe that you can just slap another ecu on your car and it will run fine... I ran a ks rom ecu on my old gt for a while before it blew up and with that it used to be extremely sluggish down low and then judder at about 3k then pull like a dream... The ecu were designed to remove all restrictions and offer a more aggressive map however you still need to put it on a rolling road with a fpr and have the fuelling set up the best that you can. Personally I'd recommend putting a piggyback ecu on instead and mapping it properly. It'll cost about the same and be a lot more accurate/safe.

[ash p]

I might put it on a rolling road then and see if I can get it set up right I had a fpr but people on here said I should take it off as the jam ecu only works with the stock fpr

[H_D]

Bring it down let me have a look if your free on the weekend.

[ash p]

Got a wedding this weekend mate you free in the week days anytime if not next weekend?

[H_D]

Im working away next weekend on a mates project car and busy on weekdays untill 730-8pm.