Megasquirt Problem, No spark, no fuel, cant connect to pc, + more. Help please!!
#21
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Standard optoisolator with pullup to 5V on both the crank and cam circuits. The unit has been tested fine on the stim. What worries me is that you are not hearing the fuel pump priming - the fuel pump relay has been tested as well.
#22
Any ideas on what it could be then. Tunerstudio keeps crashing when I crank now. Will try and get an actual serial port thing tomorrow (cant remember what its called, but looks like a camera card plugs in and gives an actual serial port hardware, rather than using a serial to usb). But no crank readings are being received by it as far as I can tell.
But still that doesnt solve the problem. Gonna try and plug the stock ecu back in. See if the problems are still there, or if it then primes and stuff. If it does then the cam sensor must be alright etc?
Really dont know what to do now?
But still that doesnt solve the problem. Gonna try and plug the stock ecu back in. See if the problems are still there, or if it then primes and stuff. If it does then the cam sensor must be alright etc?
Really dont know what to do now?
#23
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The stock ECU doesn NOT prime the pump before cranking, only DURING cranking.
There is a probability that your car is not an EU spec and has a different wire on the CAS - I can guide you to find this if need be, you need to have a multimeter to test it.
We must isolate the problem, but first you must be able to get a reliable datalog while cranking so that we know whats up. By the way, when you install the stock ECU, remember to replace the STSIGN fuse or the pump will not prime during cranking.
And please, remember to remove the fuse BEFORE reinstalling the MS!
There is a probability that your car is not an EU spec and has a different wire on the CAS - I can guide you to find this if need be, you need to have a multimeter to test it.
We must isolate the problem, but first you must be able to get a reliable datalog while cranking so that we know whats up. By the way, when you install the stock ECU, remember to replace the STSIGN fuse or the pump will not prime during cranking.
And please, remember to remove the fuse BEFORE reinstalling the MS!
#24
The stock ECU doesn NOT prime the pump before cranking, only DURING cranking.
There is a probability that your car is not an EU spec and has a different wire on the CAS - I can guide you to find this if need be, you need to have a multimeter to test it.
We must isolate the problem, but first you must be able to get a reliable datalog while cranking so that we know whats up. By the way, when you install the stock ECU, remember to replace the STSIGN fuse or the pump will not prime during cranking.
And please, remember to remove the fuse BEFORE reinstalling the MS!
There is a probability that your car is not an EU spec and has a different wire on the CAS - I can guide you to find this if need be, you need to have a multimeter to test it.
We must isolate the problem, but first you must be able to get a reliable datalog while cranking so that we know whats up. By the way, when you install the stock ECU, remember to replace the STSIGN fuse or the pump will not prime during cranking.
And please, remember to remove the fuse BEFORE reinstalling the MS!
The route of this may be that the car is a jap eunos roadster. So that could be the difference, maybe a difference in loom? We'll go through tomorrow evening with the multimeter and try and figure it out anyway. Have to first try and sort a bad oil leak at the oil pump aswell though.....constant headaches with this ha!
Thanks very much for the help so far though!
#25
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All EUDM-spec 1.6 NAs have the two CAS signal wires in pins 2F and 2G, where the USDM-spec (and possible the JDM-spec) cars have them in 2E and 2G.
I found out about this the hard way, when I tried to install an MSPNP9093 from DIYAutoTune, in a friend's EU-spec 92, and it wouldn't work at all...so I had to modify his harness to make it work. I removed the 2f pin&wire from the connector and moved it to 2E. Cranked it and it fired right up.
This is probably what you need to do as well.
#26
I made the fule pump relay mistake with the EU+Immo being different than the US sans immo for my 99. Now I also have JP 98 RS that probably have even more differences (but I have not bothered to find the ECU location yet).
The colors for the sensors are usually the same, but options may differ (second O2, purge valves etc), and sometimes functions are shifted around to make place (I guess).
#28
Well that kinda narrows it down. All the ECUs I built for the EU are for EU-spec cars unless otherwise stated (ie I had a person from Norway that had a US-spec 99).
All EUDM-spec 1.6 NAs have the two CAS signal wires in pins 2F and 2G, where the USDM-spec (and possible the JDM-spec) cars have them in 2E and 2G.
I found out about this the hard way, when I tried to install an MSPNP9093 from DIYAutoTune, in a friend's EU-spec 92, and it wouldn't work at all...so I had to modify his harness to make it work. I removed the 2f pin&wire from the connector and moved it to 2E. Cranked it and it fired right up.
This is probably what you need to do as well.
All EUDM-spec 1.6 NAs have the two CAS signal wires in pins 2F and 2G, where the USDM-spec (and possible the JDM-spec) cars have them in 2E and 2G.
I found out about this the hard way, when I tried to install an MSPNP9093 from DIYAutoTune, in a friend's EU-spec 92, and it wouldn't work at all...so I had to modify his harness to make it work. I removed the 2f pin&wire from the connector and moved it to 2E. Cranked it and it fired right up.
This is probably what you need to do as well.
I also found this before:
http://www.miata.net/garage/ECU_Pin-Out.png
Is there any other differences in wiring that I should switch or look out for? Or is it just the CAS?