1999 225 Ficht Cold Start Issue

[26Negus]

Hello all! I hope someone out there has had the same problem and can shed some light. I have twin 225's Fichts and my port engine has an issue when starting cold. It fires up and a couple of seconds later it idles way down and then stalls. Hard to start but after it is warm (couple of minutes) it fires off easily. Occasionally it will stall at idle but fires right back up. I have swapped the following with the starboard engine but it didn't fix the problem, fuel filters, both fuel pumps and vapor seperator, emm. Engine has fresh plugs (indexed and gapped), and fresh pure fuel. Upstream Racor water seperators are new. Battery is new and spins the engine easily. Diagnostic software shows to codes and the error lights do not alarm. Giving it throttle will help the issue so could it be the TPS? Thanks in advance!

 

[Faztbullet]

Re: 1999 225 Ficht Cold Start Issue

Yep and they(OMC) had a update on the TPS. Check with a deaer to see if they can pull service history on engine(take Model/serial number). The dia software should show TPS fault if out of range.

 

[noelm]

Re: 1999 225 Ficht Cold Start Issue

another cheap and quick part to swap or replace is the temp sensor in the airbox, it is a simple plug in/out thing, and it's job is to tell the engine how much throttle and fuel the motor needs at startup, it may be faulty (just a maybe)

 

[26Negus]

Re: 1999 225 Ficht Cold Start Issue

Thanks. I will try swapping the temp sensor first. It looks like I have the updated solid rod TPS. Would a TPS fault sound the lights and alarms?

 

[boobie]

Re: 1999 225 Ficht Cold Start Issue

A TPS fault will turn on the check engine lite and an alarm.

 

[26Negus]

Re: 1999 225 Ficht Cold Start Issue

Thanks. I am going to test the air temp sensor swap tomorrow. I will let ya'll know the results.