Problem after Max Chip
11-26-2007, 01:37 AM
#16
Rennlist Member
Just wondering 89951 DREAMER, did you have your Escort cups and 500lb springs in your avatar?
11-26-2007, 10:07 AM
#17
I just started my car this morning since not driving it Friday and the symptoms were back, backfiring, surging, bucking, you name it, idle is now at 700 rpm, putting back old APE chips and throwing these away
11-26-2007, 01:17 PM
#18
11-26-2007, 04:03 PM
#19
Rennlist Member
My car ran great with the Max chip until after about 45 minutes. Then it would turn into a coughing, bucking, backfiring mess, stalling constantly and not running in any gear.
On my car it was the DME unit itself. Replaced with an identical factory unit I found used and all is back to normal, although I really liked how the car ran with the chip during the first 45 minutes!
Along the way, I replaced TPS, Cycling Valve, Idle Control Valve and several other idle related parts to no avail.
11-26-2007, 07:29 PM
#20
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11-26-2007, 10:52 PM
#21
Funny, I was in 4th or 5th at night and floored it in both until I hit 150 then I backed down and as I exited the white coolant vapor started coming out the tail pipe and the misfiring started. My mechanic said never to WOT in top gears as the car's engine is at the most stress in the two upper gears, so now I just floor it in 1-3 and gently in 4th and 5th. I blew it with my Autothority chips back in July, in cylinder #4 where all of them blow it at from the steam I guess...
11-26-2007, 11:02 PM
#23
11-27-2007, 12:11 AM
#25
The Impaler
Rennlist Member
Rennlist Member
11-27-2007, 08:01 PM
#26
11-27-2007, 08:09 PM
#27
Timing is VERY important.
Keep in mind that you turbo spools earlier in high gears - so you need to make sure that your engine is prepared for earlier torque.
If the timing is not and can not be retarded enough, or worse, if the DME is being "tricked".....well, boom.
11-28-2007, 01:17 PM
#28
AFR is not the the only thing that is important in high gear on a turbo.
Timing is VERY important.
Keep in mind that you turbo spools earlier in high gears - so you need to make sure that your engine is prepared for earlier torque.
If the timing is not and can not be retarded enough, or worse, if the DME is being "tricked".....well, boom.
Timing is VERY important.
Keep in mind that you turbo spools earlier in high gears - so you need to make sure that your engine is prepared for earlier torque.
If the timing is not and can not be retarded enough, or worse, if the DME is being "tricked".....well, boom.
11-28-2007, 01:23 PM
#29
Does the car stall? Mine did. Also, do these symptoms appear as soon as you start the car, or does it take a while?
My car ran great with the Max chip until after about 45 minutes. Then it would turn into a coughing, bucking, backfiring mess, stalling constantly and not running in any gear.
On my car it was the DME unit itself. Replaced with an identical factory unit I found used and all is back to normal, although I really liked how the car ran with the chip during the first 45 minutes!
Along the way, I replaced TPS, Cycling Valve, Idle Control Valve and several other idle related parts to no avail.
My car ran great with the Max chip until after about 45 minutes. Then it would turn into a coughing, bucking, backfiring mess, stalling constantly and not running in any gear.
On my car it was the DME unit itself. Replaced with an identical factory unit I found used and all is back to normal, although I really liked how the car ran with the chip during the first 45 minutes!
Along the way, I replaced TPS, Cycling Valve, Idle Control Valve and several other idle related parts to no avail.
