5 Beeps on 525 efi
#1
5 Beeps on 525 efi
Receiving an alarm going off on a 525 efi. 5 beeps about 3 seconds apart and an interval of 45 seconds.
From what I found on web says it is the IAC?? Engine has a 140 hrs on it. I have not had a chance to scan it yet. If I scan it with Rinda scanner will that give me a code if IAC is bad?
From what I found on web says it is the IAC?? Engine has a 140 hrs on it. I have not had a chance to scan it yet. If I scan it with Rinda scanner will that give me a code if IAC is bad?
#3
seemed to run good, Didn't have it out for 10 minutes until alarm went off and it went back on the trailer. I will have to get it back in and diagnosis it.
What is Considered High oil temp which will trigger the alarm?
What is Considered High oil temp which will trigger the alarm?
#5
update- Engine is actually running very rough. Seems to be loading up with fuel. Idles horrible and will even stall. So far I have switched the IAC between the two engines and also installed a new MAP sensor. Both made no difference. I also attempted to misfire each individual cylinder with the scanner. Creating a misfire on the odd cylinders seemed to not effect the engine. like they are not firing 100%.
Going to do spark plugs next. Any ideas on what's causing this misfire? And Yes alarm is still going off with 5 beeps. I assume that is all related to the same issue.
Going to do spark plugs next. Any ideas on what's causing this misfire? And Yes alarm is still going off with 5 beeps. I assume that is all related to the same issue.
#6
Banned
iTrader: (9)
What scan tool are using to scan the engine ?
what fault code(s) are showing - the beeps / alarms will surely have a fault code(s) displayed in the scan ?
I would use sealed inline spark checkers on all 8 and see if all 8 are firing or not while running the engine.
what fault code(s) are showing - the beeps / alarms will surely have a fault code(s) displayed in the scan ?
I would use sealed inline spark checkers on all 8 and see if all 8 are firing or not while running the engine.
Last edited by BUP; 07-31-2015 at 10:16 PM.
#8
Banned
iTrader: (9)
So you scanned the engine and you are not able to see what the fault code numbers mean ?
Just in case
I am completely going off the top of head here so possible not 100 % but most of the time my memory is good. Might want to check with a Merc dealer about what I post for the fault codes to verify 100 % for . PCM 03 / PCM 555
Fault #'s scripts
17 - MAP sensor idle fault - Smartcraft display should be MAP idle err
script is engine pulls VAC on the inlet at idle so if there is no difference in psi drop from key on to running, MAP sensor may be bad or bad connection or ground issue or airflow is disrupted in the intake system.
Have you done anything to the intake and or throttle plate or throttle bore or flame arrestor (restricted badly) ? just asking
Just in case
I am completely going off the top of head here so possible not 100 % but most of the time my memory is good. Might want to check with a Merc dealer about what I post for the fault codes to verify 100 % for . PCM 03 / PCM 555
Fault #'s scripts
17 - MAP sensor idle fault - Smartcraft display should be MAP idle err
script is engine pulls VAC on the inlet at idle so if there is no difference in psi drop from key on to running, MAP sensor may be bad or bad connection or ground issue or airflow is disrupted in the intake system.
Have you done anything to the intake and or throttle plate or throttle bore or flame arrestor (restricted badly) ? just asking
Last edited by BUP; 08-03-2015 at 09:59 PM.
#9
Banned
iTrader: (9)
Next do have GPS or how do you monitor speed for your app ? Fault # 94 is a common one - Pitot Pressure circuit low - This is used for boat speed but depending on your set up. Smartcraft fault should read PITOT CKT HI
Fault # 118 Steering Position Circuit high - app specific - steering sensor circuit shorted - this will display in freeze frame if sensor is not wired into Smartcraft - this fault should read on smartcraft - STEER CKT HI
Fault # 75 is Another one that is common - fuel level 1 circuit is high - this is for the primary fuel tank only if 2 fuel tanks are being used / installed - will be displayed on freeze frame if sensor is not wired to smartcraft. - this fault should read on smartcraft - FUEL LVL CKT HI
Fault # 191 - fuel level 2 circuit hi - Smartcraft display FUEL LVL 2 CKT HI - this is the same as fault 75 but is for the secondary fuel tank if 2 fuel tanks are installed in your app.
I hope I got this right because that was a lot of thinking on my part. Just double check it all this info however.
I do not see why your scan did not display what the faults meant or did they tell you ?
Fault # 118 Steering Position Circuit high - app specific - steering sensor circuit shorted - this will display in freeze frame if sensor is not wired into Smartcraft - this fault should read on smartcraft - STEER CKT HI
Fault # 75 is Another one that is common - fuel level 1 circuit is high - this is for the primary fuel tank only if 2 fuel tanks are being used / installed - will be displayed on freeze frame if sensor is not wired to smartcraft. - this fault should read on smartcraft - FUEL LVL CKT HI
Fault # 191 - fuel level 2 circuit hi - Smartcraft display FUEL LVL 2 CKT HI - this is the same as fault 75 but is for the secondary fuel tank if 2 fuel tanks are installed in your app.
I hope I got this right because that was a lot of thinking on my part. Just double check it all this info however.
I do not see why your scan did not display what the faults meant or did they tell you ?
Last edited by BUP; 08-03-2015 at 09:59 PM.
#10
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update- Engine is actually running very rough. Seems to be loading up with fuel. Idles horrible and will even stall. So far I have switched the IAC between the two engines and also installed a new MAP sensor. Both made no difference. I also attempted to misfire each individual cylinder with the scanner. Creating a misfire on the odd cylinders seemed to not effect the engine. like they are not firing 100%.
Going to do spark plugs next. Any ideas on what's causing this misfire? And Yes alarm is still going off with 5 beeps. I assume that is all related to the same issue.
Going to do spark plugs next. Any ideas on what's causing this misfire? And Yes alarm is still going off with 5 beeps. I assume that is all related to the same issue.