Nothing left to check? VP 5.7GSI wont start - good fuel pressure, good ecm, wiring
#81
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http://boatinfo.no/lib/volvo/manuals/ef_wiring.html#/12
Someone on this threas provided above link. I looked up the wiring, and yeh, much different than the old vehicle tbi's,as the MEFI's have a lot more capability.
.
Injectors are on the truck. You'll find out shortly.
Someone on this threas provided above link. I looked up the wiring, and yeh, much different than the old vehicle tbi's,as the MEFI's have a lot more capability.
.
Injectors are on the truck. You'll find out shortly.
#83
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I put a few extra top gaskets in for you......plus instructions.
#85
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The link for the wiring diagram above is the exact showing for 5.0 GI and 5.7 GSI model ID and should be yours as well
Volvo Penta model # 57GSiPEFS and 50GiPEFS
You boat started up with poured gas down the TB and sounded like it was firing OK for the 3 seconds it ran so IMO the ignition set up is OK.. But will ask you do have a tach reading when it did pop off ??
IMO problem lies with Injectors if not possible ECM or related to it as what I posted before.
IMO will say your scenario as guessing totally on my part. At the beginning I believe your fuel system was not primed and or 100 % fully hence THE no start. You did some parts changing and Self testing - Still no start - then had SOMEONE double / triple check the injectors, possible doing so someone checking them out afterwards jacked them up supplying 12 V and or homemade testing. You finally got the fuel system fully primed - threw the now bad injectors back in and are dealing with what happened from those effects since then - still no start or a very brief start then stall.
Volvo Penta model # 57GSiPEFS and 50GiPEFS
You boat started up with poured gas down the TB and sounded like it was firing OK for the 3 seconds it ran so IMO the ignition set up is OK.. But will ask you do have a tach reading when it did pop off ??
IMO problem lies with Injectors if not possible ECM or related to it as what I posted before.
IMO will say your scenario as guessing totally on my part. At the beginning I believe your fuel system was not primed and or 100 % fully hence THE no start. You did some parts changing and Self testing - Still no start - then had SOMEONE double / triple check the injectors, possible doing so someone checking them out afterwards jacked them up supplying 12 V and or homemade testing. You finally got the fuel system fully primed - threw the now bad injectors back in and are dealing with what happened from those effects since then - still no start or a very brief start then stall.
Last edited by BUP; 05-11-2015 at 11:02 PM.
#86
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The link for the wiring diagram above is the exact showing for 5.0 GI and 5.7 GSI model ID and should be yours as well
Volvo Penta model # 57GSiPEFS and 50GiPEFS
You boat started up with poured gas down the TB and sounded like it was firing OK for the 3 seconds it ran so IMO the ignition set up is OK.. But will ask you do have a tach reading when it did pop off ??
IMO problem lies with Injectors if not possible ECM or related to it as what I posted before.
IMO will say your scenario as guessing totally on my part. At the beginning I believe your fuel system was not primed and or 100 % fully hence THE no start. You did some parts changing and Self testing - Still no start - then had SOMEONE double / triple check the injectors, possible doing so someone checking them out afterwards jacked them up supplying 12 V and or homemade testing. You finally got the fuel system fully primed - threw the now bad injectors back in and are dealing with what happened from those effects since then - still no start or a very brief start then stall.
Volvo Penta model # 57GSiPEFS and 50GiPEFS
You boat started up with poured gas down the TB and sounded like it was firing OK for the 3 seconds it ran so IMO the ignition set up is OK.. But will ask you do have a tach reading when it did pop off ??
IMO problem lies with Injectors if not possible ECM or related to it as what I posted before.
IMO will say your scenario as guessing totally on my part. At the beginning I believe your fuel system was not primed and or 100 % fully hence THE no start. You did some parts changing and Self testing - Still no start - then had SOMEONE double / triple check the injectors, possible doing so someone checking them out afterwards jacked them up supplying 12 V and or homemade testing. You finally got the fuel system fully primed - threw the now bad injectors back in and are dealing with what happened from those effects since then - still no start or a very brief start then stall.
#87
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It just keeps getting stranger guys. When I put the new injectors in, something certainly changed. The engine will start after extended periods of cranking, but never stays running. If I coax it with some throttle, especially once I hear it kick, she will start every one in a while, and I managed to keep it running for a few seconds once. I put the muffs on the engine at this point, since I thought I could force it to stay running, but I just can't keep it running. The longest I had it running was 10 seconds after throttling it up to 2000 rpm. she surged and died when I brought it back down to idle. Still no codes.
Fuel pressure is steady 30 psi and I'm certain I have good fuel. What the hell is going on? Just to recap, here is what's been replaced:
Map sensor
Coolant temp sensor
Fuel injectors
Ignition coil
I have a new ignition module coming tomorrow morning, since the first Sierra one was bad. This is also a Sierra because I couldn't get my money back. I suppose it's possible that this will be the missing piece. The old injectors must have been bad, but they are only a piece of a puzzle it seems.
Fuel pressure is steady 30 psi and I'm certain I have good fuel. What the hell is going on? Just to recap, here is what's been replaced:
Map sensor
Coolant temp sensor
Fuel injectors
Ignition coil
I have a new ignition module coming tomorrow morning, since the first Sierra one was bad. This is also a Sierra because I couldn't get my money back. I suppose it's possible that this will be the missing piece. The old injectors must have been bad, but they are only a piece of a puzzle it seems.
#89
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#90
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Put it this way, you can't tune a carb if your timing and/or rest of ignition isn't working correctly....and they aren't plugged into each other. LOL.