Hello. I have a 93 Honda Prelude DOHC VTEC. I recently did a simple tune up on it like always. When I went to start the car back up there was a lot of hesitation and misfire then it died. It was a hard start right after that and with the same results. I tried to start it again and now the engine just rotates with no start. I have replaced the distributor with new cap and rotor. There are new wires and plugs. I have no spark at the plugs. I have fuel getting to the engine. I have been told that my camshaft position sensor has gone out. Could this be true? If so how would I fix it?
My wild useless guess (on site it be 5min work)
is you failed to replace the HV spark wires 1 by one.
losing the timing order.?
sure, like 1million posts world wide, all say CMP/CKP are bad, few are.(most posters love to guess. and spend your cash)
it ran before, the belt went bad. right?
what tune up, just spark? only and filters.
or the timing belt. (dont skip that or you will bend the valves in the cylinder head)
no spark, at all 4 plugs.
you didnt remove the distributor?
my guess is this old post you found it.
the ECU in your car is old and can in fact report via lights , code lamps CMP or CKP bad. did you look for that?
its documented well and free at all honda forums. (not here)
here are the codes and tests for old OBD0 and OBD1 hondas
code 4? code 15, code 8/9? all kill spark or just fuel. see OBD1 link at bottom of page.
http://www.troublecodes.net/honda/
SOURCE: 93 honda prelude dohc vtec engine will not can be push started
Sounds like you accidently pulled the thin wire from you starter motor. Look at the connections at the end of the solenoid, mounted on starter motor.The thick red wire is Battery + next to that connection is a smaller male push- on terminal, locate loose wire (thin) in the same area and reconnect to male push-on terminal on solenoid or check if earth cable between body/battery to engine wasnt removed in the process.Also some vehicles you have to engage the clutch before starting, check for a switch located on clutch pedal where master cylinder connects to clutch pedal (Is clutch switch mounted and wiring connected?)
SOURCE: 93 accord stalled while driving....
pull one of the plugs out leave the plug wire on it and rest it on something metal on the car and have someone try to turn it over.if no spark can be seen try changing your crankshaft sensor
SOURCE: Camshaft keeps breaking in the same spot!
you have to make sure you dont have a stuck valve wich is causing it to put pressure on cam and break I had a customer with same problem.
SOURCE: 1995 Civic Dies
you may have a faulty crank position sensor shutting the spark off. this will throw a code into the computer though my suggestion would be to have the ecm read for codes.
SOURCE: 1996 Honda Accord Rough Idle Even After tune up
Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps
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