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Car Forum / Volvo Cars / July 200592 960 ignition problem
92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) no spark on cylinder #2 have exchanged from running other 92 960 : ecu,coil,amplifier module,flywheel sensor,cam sensor,sparkplug have checked wires from ecu to amp on manifold,amp to coil all ok 14v on coil with running engine also enough power to light up a 21w bulb checked signal on ecu for plug #2(wire #13) and nothing all others ok i have soldered a wire directly on the pcb to check the signal,but its to dark now and my flashlight just died,so i will check that tomorrow any help is welcome marc  SignatureUsing Opera's revolutionary e-mail client: http://www.opera.com/mail/ > 92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) > [quoted text clipped - 8 lines] > > checked signal on ecu for plug #2(wire #13) and nothing all others ok If I understand you correctly, you have +12v and ground at the ignition amp, but you have no LT trigger signal from the ECU?? If you have swapped the ECU for a known working one and still no LT to plug 2 then you must have a break in the signal wire between ECU and amp??? Tim.. >> 92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) >> [quoted text clipped - 18 lines] > > Tim.. ground at ignition amp ok because the two other cylinders work no break in the wires,same result when i measure resistance between ground and pin 13 with no ecu present on both cars Marc SignatureUsing Opera's revolutionary e-mail client: http://www.opera.com/mail/ > > 92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) > > [quoted text clipped - 16 lines] > > Tim.. And you know there's 2 amplifier modules and IIRC the rear one does the front cylinders? SignatureMike F. Thornhill (near Toronto), Ont. Replace tt with t (twice!) and remove parentheses to email me directly. (But I check the newsgroup more often than this email address.) >> > 92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) >> > [quoted text clipped - 22 lines] > And you know there's 2 amplifier modules and IIRC the rear one does the > front cylinders? yes i know there are two amps(front for 1 3 5 and rear for 2 4 6) you can find the schematics here:http://www.autoelectric.ru/auto/volvo/960/1993/960-93.htm Marc SignatureUsing Opera's revolutionary e-mail client: http://www.opera.com/mail/ > >> > 92 960 328000km(about 200000m)bi-fuel(lpg gas/petrol) > >> > [quoted text clipped - 26 lines] > you can find the schematics > here:http://www.autoelectric.ru/auto/volvo/960/1993/960-93.htm How / is there an schematic of the 70 series cars on that site? I cant read russian! Tim.. only 740 and 960 unfortunately i could use the schematics of a 70 series too since my brother bought a c70 nothing is wrong yet,but how long will that last? SignatureUsing Opera's revolutionary e-mail client: http://www.opera.com/mail/ Have you tried the Chilton manual number 72302? Available from IPD and probably most high street motor accessory shops. All the best, Peter. 700/900/90 Register Keeper, Volvo Owners Club (UK). > only 740 and 960 unfortunately > i could use the schematics of a 70 series too since my brother bought a > c70 > nothing is wrong yet,but how long will that last? |
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