351w EFI performance upgrades?
#181
Did you remove the SPOUT connector? 97' is likely SD, assuming it's in an f250 or f350. Is there a MAF sensor in the intake tube? Is it OBDI (EEC-IV) or OBDII (EEC-V)?
#182
#185
Which cam did you use. Sorry if I missed it. SD is sensitive to LSA.
I don't have a ton of experience I've just read a lot recently, and have been asking questions that might help one of the experts help you.
It's possible the sensor isn't working correctly. Does the exhaust smell rich? What do the plugs look like?
I don't have a ton of experience I've just read a lot recently, and have been asking questions that might help one of the experts help you.
It's possible the sensor isn't working correctly. Does the exhaust smell rich? What do the plugs look like?
#186
#190
#191
#193
You need a timing light to set the timing, period.
The computer has only one way to control the timing of the engine, and that is through the SPOUT wire. The computer also has no way to verify the timing - all of its timing information comes from assuming the distributor is perfectly set to 10* BTDC.
If you unplug the SPOUT connector, the computer has absolutely no control of the timing. The read out on the scanner is just what the computer is trying to command the timing to be.
The computer has only one way to control the timing of the engine, and that is through the SPOUT wire. The computer also has no way to verify the timing - all of its timing information comes from assuming the distributor is perfectly set to 10* BTDC.
If you unplug the SPOUT connector, the computer has absolutely no control of the timing. The read out on the scanner is just what the computer is trying to command the timing to be.
#194
#195