Hanging idle @ 2k then returns to normal - NOW WITH PICS
So, ive been trying to piece back together my mustang after getting it back from a crappy CRAPPY shop - Details and all accounts are here http://www.stangnet.com/mustang-forums/825593-running-rich-issue.html
Now Im finally getting around to actually finishing it - however another issue has come up. The car starts strong every time, idles perfectly, no hiccups, surging, purs like a lion when im running it now with no exhaust except headers and down pipes - perfect... until you rev it.
It revs strong, fast, dosnt backfire, but then hangs at 2k rpm for 6 or 7 seconds, then drops back down to standard perfect idle.
I drove it tonight after I got the new wheels put on it and it runs strong, gets up quick, but as soon as i let off the gas and put the clutch in, it will hang at 2k rpms for 7 to 8 seconds, kind of an embarrassing amount of time.
Ive read the surging idle checklist - specifically topic 6, about cleaning the 10 pins, However - the car did not have this problem prior to me installing a new A9L ECU from seijirou (for whom i love for being so gracious for ) But seriously, on the 2nd page of the above posted link shows the old ECU, the shop put in an SD ECU to my MAF converted car (out of a ford topaz of all things)
Now that the proper ECU is installed, would it be causing an issue such as this?
Would running it as SD completely bypass the 10 pin connectors, rendering them useless, hiding the fact they may be dirty or damaged?
Would having no exhaust aside from down pipes before they connect into the H (o2's are hooked up) cause issues like this?
Either way, Im driving it to the exhaust shop tomorrow to have them finish putting up the H, installing some new mufflers and tail pipes for my cobra rear bumper.
I should have pics tomorrow
So, ive been trying to piece back together my mustang after getting it back from a crappy CRAPPY shop - Details and all accounts are here http://www.stangnet.com/mustang-forums/825593-running-rich-issue.html
Now Im finally getting around to actually finishing it - however another issue has come up. The car starts strong every time, idles perfectly, no hiccups, surging, purs like a lion when im running it now with no exhaust except headers and down pipes - perfect... until you rev it.
It revs strong, fast, dosnt backfire, but then hangs at 2k rpm for 6 or 7 seconds, then drops back down to standard perfect idle.
I drove it tonight after I got the new wheels put on it and it runs strong, gets up quick, but as soon as i let off the gas and put the clutch in, it will hang at 2k rpms for 7 to 8 seconds, kind of an embarrassing amount of time.
Ive read the surging idle checklist - specifically topic 6, about cleaning the 10 pins, However - the car did not have this problem prior to me installing a new A9L ECU from seijirou (for whom i love for being so gracious for ) But seriously, on the 2nd page of the above posted link shows the old ECU, the shop put in an SD ECU to my MAF converted car (out of a ford topaz of all things)
Now that the proper ECU is installed, would it be causing an issue such as this?
Would running it as SD completely bypass the 10 pin connectors, rendering them useless, hiding the fact they may be dirty or damaged?
Would having no exhaust aside from down pipes before they connect into the H (o2's are hooked up) cause issues like this?
Either way, Im driving it to the exhaust shop tomorrow to have them finish putting up the H, installing some new mufflers and tail pipes for my cobra rear bumper.
I should have pics tomorrow