Crumz
11-08-2010, 10:02 AM
Mostly stock S14a SR20DET 208,000kms
2 Weeks ago came up the hill on my way home, was giving it to the car the whole way so as expected shit was 'warm'. Dropped a cylinder round corner from house, no biggie, nurse it home, pull into driveway. Popped the bonnet to check with car idling, then she stalls.
Soon found I had no ignition. Car would crank, but no indicators, windows, dash lights etc.
Had a check around and called my uncle (auto sparky).
Discovered immobiliser circuit board had split, loosing a contact (the one that feeds ignition). Fixed that, started car to find mis.
Found number 4 misfiring, expecting it to be a plug, I whipped the coil pack out only to find that it's insides had become it's outsides. Cooked, hard.
Car sat until I got another CP yesterday, took it for a quick, hard drive, no issues.
Went down the hill just now, coming back, not driving as hard, but still above 4500rpm changes, drops a cylinder again. Again get her home.
Again have cooked the CP, hard. f##ker was smoking for 10 mins after stopping (I believe that may have been the 5+ minutes of driving with it already dead). Again was cylinder number 4.
So. What causes a CP to fry? I could have said yeah these are old, must be the issue, but both being number 4, and a newer one in, it's something to do with that cylinder, either the wiring or the way it's sitting.
Possible it's rubbing on the plug wall and shorting that way?
Possible the immob is f##ked and causing shorts? Autowatch alarm system. Thinking I might just delete it from the car, but need a few tools first.
Anyone come across anything of the like before?
Anyone near Roleystone got SR CPs?
2 Weeks ago came up the hill on my way home, was giving it to the car the whole way so as expected shit was 'warm'. Dropped a cylinder round corner from house, no biggie, nurse it home, pull into driveway. Popped the bonnet to check with car idling, then she stalls.
Soon found I had no ignition. Car would crank, but no indicators, windows, dash lights etc.
Had a check around and called my uncle (auto sparky).
Discovered immobiliser circuit board had split, loosing a contact (the one that feeds ignition). Fixed that, started car to find mis.
Found number 4 misfiring, expecting it to be a plug, I whipped the coil pack out only to find that it's insides had become it's outsides. Cooked, hard.
Car sat until I got another CP yesterday, took it for a quick, hard drive, no issues.
Went down the hill just now, coming back, not driving as hard, but still above 4500rpm changes, drops a cylinder again. Again get her home.
Again have cooked the CP, hard. f##ker was smoking for 10 mins after stopping (I believe that may have been the 5+ minutes of driving with it already dead). Again was cylinder number 4.
So. What causes a CP to fry? I could have said yeah these are old, must be the issue, but both being number 4, and a newer one in, it's something to do with that cylinder, either the wiring or the way it's sitting.
Possible it's rubbing on the plug wall and shorting that way?
Possible the immob is f##ked and causing shorts? Autowatch alarm system. Thinking I might just delete it from the car, but need a few tools first.
Anyone come across anything of the like before?
Anyone near Roleystone got SR CPs?