No. I have not found fix yet. I have had some family medical conditions arise and haven't had time to get back to it.
Where did you send your ecm?
I have used G7 on some auto ecms and they said they could test and repair this ecm. I'm going back to lake this weekend for some last testing then...
Yes, I agree. I have replaced IAC and TPS as I thought that would be quick and easy. When that didn't work thats when I started testing wiring, grounds, etc. Good continuity no shorts.
I have spoke with a company that rebuilds this particular ECM, so am going to send it off. Their turn around...
The hull # fgb43568g506. The boat mechanic at the marina where I keep the boat scanned it when the problem occurred and said there were no codes. He test drove it and confirmed the problem, but after a week he said he wasn't sure what the problem was and didn't exactly know which direction to...
I found this in manual tonight, wish I was better at computers so I could post the function test diagram.... anyway
Step 4 using test lamp connected to ground, probe each of the 4 IAC harness terminals. Does the test lamp blink on all 4 terminals:
yes= Step 5 IAC circuit functioning properly...
the boat would crank but not start with old IAC, once I replaced the IAC it will crank and start just idles to fast 1200 rpm. Do you think the bad IAC could have shorted the ECM driver on pin 16?
I agree. The IAC can't operate properly if it's not getting signal from all the wires. The blue /yellow wire is not getting any voltage from ECM. If I could just figure out what controls that wire problem could be solved. Like automotive manuals what happens inside the ECM is a mystery.
The engine was scanned with no codes present.
The engine # is off of my registration, it didn't match when I tried to use but was the only number I had, so I'll have to go back to marina and get good number.
I didn't check voltage on 4 terminal of IAC valve just test light checking for blink per...
worried it may be ecm. one answer from "just answer" said when IAC goes bad 10-15% of the time it blows the ECM.
That is it. I have tested for continuity and shorts all is good, just trying to figure out what drives the d circuit bl/y to pin 16. I'm afraid its going to be the driver in the...
no, sorry. before replacing IAC it would crank no start. New IAC it cranks and starts just idles high, 1200rpm. Checked for vacuum leaks because that was my first thoughts.
multiple places I have read that all 4 wires to IAC should blink with test light. 3 out of 4 are blinking, one blue...
would you please send me voltage chart. 4 wires (1) pin16 bl/y to D, (2) pin 31 p/bl to c, (3) pin 30 bn/gr to b, and (4) pin15 gn/sb to A. According to manual and corrected charts from volvo. Per manual spec all 4 wires to IAC from ecm are positive voltage, ground is also controlled thru ecm...
Yes boat runs great at any throttle position other than neutral or idle. IAC has 2 screws and 1 oring and 1 connector. I made sure old oring was removed. No vacuum leaks. I replaced IAC with volvo penta IAC but dont have part # with me. motor serial #4101216623.
I did. The manual gives wiring diagram and a flow chart, i followed it until i got to the last question ... do all 4 wire blink with test light? the answer then is verify repair. No yes or no option follows
2006 chaparral 5.0 gxi-e, running fine went to neutral and boat dies wont crank up
i can shift to fast idle cranks and runs smooth at higher rpms but dies in neutral.
replaced IAC cranks but idles at 1200 rpm.
read were test light should flash on all 4 wires to IAC, 3 wires flash. Blue with...
