Ricepilot Posted March 8, 2004 Share Posted March 8, 2004 Wondering if anybody had any ideas on this one. I have developed quite a bad misfire between 2500rpm and 3100rpm (yes its that exact) At 3100rpm the engine comes on songs again and u get quite a burst of speed. Only happens on part throttle. Full throttle doesn't do it at all. (yes, I'd love to drive full throttle all the time but the local plod might have something to say about it) When its cold the problem is worse. Car is a grey NA. So far have changed plugs/leads/dizzy cap and arm. Not made a slight bit of difference. Any help guidance would really be appreciated cos I'm a bit stuck. Somebody did mention about a 'top dead centre sensor' but didn't know anymore than that. Link to comment Share on other sites More sharing options...
Suprash Posted March 9, 2004 Share Posted March 9, 2004 Originally posted by Ricepilot Wondering if anybody had any ideas on this one. I have developed quite a bad misfire between 2500rpm and 3100rpm (yes its that exact) At 3100rpm the engine comes on songs again and u get quite a burst of speed. Only happens on part throttle. Full throttle doesn't do it at all. (yes, I'd love to drive full throttle all the time but the local plod might have something to say about it) When its cold the problem is worse. Car is a grey NA. So far have changed plugs/leads/dizzy cap and arm. Not made a slight bit of difference. Any help guidance would really be appreciated cos I'm a bit stuck. Somebody did mention about a 'top dead centre sensor' but didn't know anymore than that. I didnt think the Supras had dizzy caps, or is this just an NA thing, I thought thats what resistor packs are all about.... Link to comment Share on other sites More sharing options...
Jake Posted March 9, 2004 Share Posted March 9, 2004 . . . and the award for least helpful reply goes to . . . [FX: Drumroll] ASHLEY WILLIS ! Just kidding mate : ) Link to comment Share on other sites More sharing options...
Suprash Posted March 9, 2004 Share Posted March 9, 2004 Originally posted by Jake . . . and the award for least helpful reply goes to . . . [FX: Drumroll] ASHLEY WILLIS ! Just kidding mate : ) Now thats just confused me even more mate, well am I right Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted March 9, 2004 Share Posted March 9, 2004 Yes, NA's have a dizzy cap, the TT's have coil packs as apparently they are easier for the ECU to retard the timing on than a Dizzy cap. Ben.. Link to comment Share on other sites More sharing options...
Ricepilot Posted March 9, 2004 Author Share Posted March 9, 2004 Pah! When I saw in me email I'd had a reply I rushed here thinking I'd have the answer to my problems!!! http://members.lycos.co.uk/goldieno1/avatars/smilies2/00000694.gif Ah well.... Yes the above info in last post is correct! Forgot to mention car is a 1993. Link to comment Share on other sites More sharing options...
Suprash Posted March 9, 2004 Share Posted March 9, 2004 Thanks Ben, for a decent reply.... ........and the award to the most sarcastic git, goes to.... [fx: drum roll] .......that purple loving hippo Link to comment Share on other sites More sharing options...
400BHP Posted March 11, 2004 Share Posted March 11, 2004 Coould be dirty injectors giving a bad spray pattern, try forte injector cleaner and see if that helps. A faulty TDC sensor would give you problems throughout the entire rev-range. Link to comment Share on other sites More sharing options...
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