SkevosEP91 Posted April 11, 2015 Share Posted April 11, 2015 Hi guys and greetings from Cyprus!!! I went today to my tuner and plug my ECU to make some corrections on the rev-limiter and launch control and came with the problem that after a short time working the ECU reads very high RPMs and starts misbehave at both revlimiter , launch and at pulls under load..My question is if this is a common problem with the distributor when running on Standalone ECUs or this maybe caused from the years so if i change a distributor will be fixed.Currently i am using a Adaptronic e420c ECU which is standalone ...Does anyone had the same problem before with standalone ECUs and fixed it with other distributors or i will be needed to change in COP ignition once and for all to get rid of this issues??? Thanks a lot in advance any help will be accepted and respected and Happy Easter for all of you!!!! Quote Link to post Share on other sites
Chief Quimby Posted April 12, 2015 Share Posted April 12, 2015 Did the problem come just now. Never had problem with oem ignition. Quote Link to post Share on other sites
SkevosEP91 Posted April 12, 2015 Author Share Posted April 12, 2015 The problem came after the installation of the Standalone Ecu !!! Quote Link to post Share on other sites
Chief Quimby Posted April 12, 2015 Share Posted April 12, 2015 You have unstable ignition signal, or too strong for the ecu.We often see this, then we absorbe(not sure it is the right word).some of the signal. Around 100kohm on the signal Quote Link to post Share on other sites
SkevosEP91 Posted April 12, 2015 Author Share Posted April 12, 2015 So there isn't any fault with the distributior it just wants this resistor ?? Quote Link to post Share on other sites
Stu Posted April 13, 2015 Share Posted April 13, 2015 (edited) I've had trigger error faults due to corroded trigger wheel pick ups. Pull the dizzy cap and rotor off and take a look at the pickups. Do you have a datalog showing the erratic rpm? Does your ecu have a trigger error count or inbuilt osciliscope? Edited April 13, 2015 by Stu Quote Link to post Share on other sites
SkevosEP91 Posted April 14, 2015 Author Share Posted April 14, 2015 We highly suspected that it was the trigger but with one other distributor did the same thing ... Maybe both distributors that checked had problem because i dont know how it performed at a stock car. The ECU after i start the car reads the correct rpms... But for example when i make 2-3 pulls under load or drive the car for a long distance or put the launch control switch for 1-2 times the ECU reads 46000 rpms.. My tuner said it must be the trigger inside the distributor...My question is if it is a possible and easy way to isolate this problem or if i need to change in COP ignition because from now on it will have more of this problems if i replace my faulty distributor to a more normal one... Also when it misbehaves when i make pulls the car misfires and don't stop until i stop the engine for a while ....I hope there is a logical explanation to all that.... Quote Link to post Share on other sites
SkevosEP91 Posted April 14, 2015 Author Share Posted April 14, 2015 My friend @Chief Quimby i tried what you suggested to me and it had absolute success.... The problem now is isolated but with no such big resistor... We used 2 resistors 1 kohm each on the 2 signals at the ECU harness and worked brilliant... Now i can actually see at what RPMs the engine is also there aren't any spikes on the rev count any more and can actually make pulls whenever i want...Thanks a lot guys for the replies they really were very helpful!!!! Quote Link to post Share on other sites
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