Need Advice - Experiencing high torque (RPM) probl

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   Hi

Im Experiencing high torque (RPM) problems with PCM 351 Pro Boss 1994 GAS. When the engine starts, the RPM goes to 1500-1800 RPM and goes down very slowly back to 1000-900 RPM. I need to wait a minute or even more to shift the gear. Sometimes I have to switch the engine off, because, it never calms down. I dont want to make some problems to gearbox.

If you know what can be a problem please let me know.

Thanks 

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sandro.zaal Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: October-08-2012 Location: Tbilisi,Georgia Status: Offline Points: 64	Post Options Post Reply Quote sandro.zaal Report Post Thanks(0) Quote Reply Topic: Need Advice - Experiencing high torque (RPM) probl Posted: March-13-2013 at 10:56am
	Hi Im Experiencing high torque (RPM) problems with PCM 351 Pro Boss 1994 GAS. When the engine starts, the RPM goes to 1500-1800 RPM and goes down very slowly back to 1000-900 RPM. I need to wait a minute or even more to shift the gear. Sometimes I have to switch the engine off, because, it never calms down. I dont want to make some problems to gearbox. If you know what can be a problem please let me know. Thanks

SNobsessed Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102	Post Options Post Reply Quote SNobsessed Report Post Thanks(0) Quote Reply Posted: March-13-2013 at 12:00pm
	It could be a vacuum leak, EI timing, or a fault in the fuel injection system. I would 1st narrow it down to one of those things. To test for vacuum, spray carb cleaner around all manifold gaskets & vacuum line connections, while engine is running. Engine will change RPM if you find a leak. Also use a timing light to see what EI is doing. I can't help on the Fuel Inj, other than to suggest checking pressure at the fuel rail. Good luck.
	“Beer is proof that God loves us and wants us to be happy.” Ben Franklin

quinner Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828	Post Options Post Reply Quote quinner Report Post Thanks(0) Quote Reply Posted: March-13-2013 at 1:40pm
	Do you have perfect pass? Would start by checking the throttle cable, be sure it is not under pressure against the shroud, a hose, etc. If a Pro-Tech motor, could also be the issue
	Mi Bowt

sandro.zaal Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: October-08-2012 Location: Tbilisi,Georgia Status: Offline Points: 64	Post Options Post Reply Quote sandro.zaal Report Post Thanks(0) Quote Reply Posted: March-13-2013 at 2:49pm
	Thanks guys. No I dont have Perfect Pass. And engine is Pro Tech Injection.

quinner Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828	Post Options Post Reply Quote quinner Report Post Thanks(0) Quote Reply Posted: March-13-2013 at 3:08pm
	94' Pro Boss with EFI & Pro-Tech Does this only happen after the motor get's hot, after some ski runs??
	Mi Bowt

sandro.zaal Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: October-08-2012 Location: Tbilisi,Georgia Status: Offline Points: 64	Post Options Post Reply Quote sandro.zaal Report Post Thanks(0) Quote Reply Posted: March-13-2013 at 3:15pm
	Yes. Sometimes it works just fine. But, mostly not. I know the idle RPM must be around 600, but it never comes below 1000.

Need Advice - Experiencing high torque (RPM) probl

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