replies Archived Message
Posted by Mike Walker on February 15, 2007, 8:22 am, in reply to "Totota MR2 turbo vin: sw200087164 '93ish" |
Hi Gary. On these (and other) Tototas, 'igt' is the trigger signal from the ECU to the amp. 'igf' is a feedback signal from the amp back to the ECU. The ECU sends a trigger signal to the amp , and the amp then sends back a feedback pulse to confirm that it has fired the coil. If the ECU does not receive this feedback pulse , it shuts off the injectors in order to prevent bore-wash in the event if the ignition not firing. One thing to be aware of however , is that in the event of amp failure , you do not often see any signal on the 'igt' line as the output from the ECU is a low current signal which is often killed by amplifier failure. The problem may well be just a faulty amp. We should be able to test the ECU for you should that be necessary
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Link: http://www.atpelectronics.co.uk
| Message Thread:
- Toyota MR2 Turbo 1993 import - Non start, crank but no injection or amp trigger - Gary Done February 14, 2007, 4:03 pm
- replies - Mike Walker February 15, 2007, 8:22 am
- fixed - Gary Done February 15, 2007, 1:20 pm
- replies - Mike Walker February 16, 2007, 8:19 am
- replies - Gary Done February 16, 2007, 11:15 am
- replies - Tony Gould February 16, 2007, 12:38 pm
- replies - Gary Done February 17, 2007, 12:38 pm
- replies - Tony Gould February 19, 2007, 10:20 am
- replies - Gary Done February 19, 2007, 12:39 pm
- replies - Nick Bell February 20, 2007, 1:08 pm
- replies - Tony Gould February 21, 2007, 9:07 am
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