1993 Lexus Ls 400 "rpm sensor" Questions

...RPM signal comes from the crank sensor. The harness connector needs to be checked for a 5v reference signal and the ground side needs to be checked for a good ground. This test is to rule out the ...

...& hesitation at speeds over 2000 rpm Could be a throttle position sensor, or a myriad of other things related to the ignition, timing, spark plugs ... maybe the engine needs a complete tune

...sensor Above 1000 rpm Clearing the codes is simple that is done by removing the fuse of the EFI from junction box 2 for 10 seconds. Make sure to remove the jumper wire and switch the key off before ...

...sensor error that read " No RPM signal while cranking. Lexus LS 400 1993 Clean, inspect and, or, Replace your crank sensor or, crank sensor wiring A loose crank sensor bracket or, a start relay has ...

...plug a scanner and got a code #12 that read "No RPM signal to ECU while cranking." code 12 - no distributor reference signal, check the camshaft position sensor, then the crankshaft position ...

...and feels like its about too shut off pls help what else could it be besides chaning all coil pacts did the spark plugs already Bad wires,IAC sensor,dirty throttle body.Next could be TPS

warning lights are on until 1000 rpm. sounds something like o2 sensor? Best reguards, Premium FixYa Team

...past. google finds that, or the 93 service manual 31 = maf dead. 41 = tps sensor bad. 2 no 2 12 = RPM #1 signal dead, (CKP dead?) google finds it ...

...rpm signal no.2) so i checked the connections on the coils,the cam sensors & the crank sensor.reset the computer by disconnecting the battery for 10 minutes. started the car and no change.after i ...

...rpm to about 2100rpm, but when placed in drive or reverse, it idles fine. when letting foot off gas to coast, it gets up to about 20mph without putting foot on gas. what could this be Sounds like a ...