cyrus Posted October 17, 2004 Share Posted October 17, 2004 I am stumped with my 1994 Supra TT swap. The timing is wrong so I bought the MT2500 snap-on scanner. And found that the computer thinks the timing is at 10 degrees (base timing) as shown by the scanner, but the actual timing light show that timing is at 20 degrees. I know this car has been in a wreck so something could be funny. The car has always be down on power. Doesn't the computer know where the crankshaft is by the crankshaft sensor and a notched ring that is on the engine. Could the sensor be bad by 10 degrees? Could the ring have slid around 10 degrees on the crank? Would the computer throw a code? Could the green wire on the ingiter be off? Need a genius. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted October 17, 2004 Share Posted October 17, 2004 Do you know if the engine has been apart before? If it has, it could be an assembly issue... I am not sure where the stock timing pickup is, but I suppose a pickup bracket could have been bent. If it is picked up from a pulley, then a pulley may have spun (happened on my SDS pickup on the front pulley). Again, I am not sure where the stock pickup is for the coil packs, but it would be a good place to start... Quote Link to comment Share on other sites More sharing options...
cheftrd Posted October 17, 2004 Share Posted October 17, 2004 Check your cam timing. The computer also takes signal from the intake cam so that it knows the phase (TDC compression or exhaust?). If the timing belt has been replaced or off, this can happen. Matt Hutchens Motorworx Race Systems Japan Quote Link to comment Share on other sites More sharing options...
cyrus Posted October 18, 2004 Author Share Posted October 18, 2004 cheftrd the cam timig relative to the crankshaft is correct I checked it. The motor may have been apart. THe sensor can not move location but I was wondering if the timing gear moved... Quote Link to comment Share on other sites More sharing options...
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