Steffannalin
Member
Whole story: Overheated last winter when lower unit intakes were frozen (left duo prop tipped up and it got COLD). Returned to dock at idle, and replaced smoked impeller. Took out again and it was still frozen, overheat alarm in harbor. Hauled out and parked until warmer weather (3 months later). Started with hose hooked up and ran like absolute crap. Shut down and did some research. Found out the whining high pressure fuel pump (had whined since I bought it) was a bad thing. Guy I bought it from had terrible hearing and didn't know it was whining. I didn't know it was an indicator of a failing fuel cell. Checked fuel pressure at rail, 52 psi on key on, and tried to start again. Would not start.
Paid for a scan, had DTC 33, MAP sensor. Cleared and replaced MAP. Still won't start. Inquired for new fuel cell, and backordered in North America, back ordered in Europe, and $1394 plus freight. Ordered aftermarket replacement. Installed. Either my fuel injection fuel pressure gauge is broken, or there isn't sufficient rail pressure. Gauge shows no pressure and yet the Schrader valve spews gas when connecting and the gauge bleeds off plenty of gas.
Have heard of paint dissolving from insides of fuel pumps and clogging the regulator. Took out the original regulator and cleaned gently, reinstalled. Nothing. Acts like it almost wants to start...a little.
Bought a Rinda handheld scan tool, and it shows no codes. Pump cycles with key on, two alarm beeps like normal. Completely at a loss. If this had a Holley 4 barrel and a distributor like an engine should have, it would be a no brainer and burning the $5.50 gas like only a big block knows how. This electronic bs has me perplexed. I have not checked spark, and my next thought was to check compression on the cold cylinders. It rolls over like normal (I've heard hydrolocked engines with bent valves try to start and it doesn't give me that impression).
Anyone else have a VP with an MEFI 4 ECM that just won't tell you why it won't start even with the electronics scanned and telling you it's ok?
Paid for a scan, had DTC 33, MAP sensor. Cleared and replaced MAP. Still won't start. Inquired for new fuel cell, and backordered in North America, back ordered in Europe, and $1394 plus freight. Ordered aftermarket replacement. Installed. Either my fuel injection fuel pressure gauge is broken, or there isn't sufficient rail pressure. Gauge shows no pressure and yet the Schrader valve spews gas when connecting and the gauge bleeds off plenty of gas.
Have heard of paint dissolving from insides of fuel pumps and clogging the regulator. Took out the original regulator and cleaned gently, reinstalled. Nothing. Acts like it almost wants to start...a little.
Bought a Rinda handheld scan tool, and it shows no codes. Pump cycles with key on, two alarm beeps like normal. Completely at a loss. If this had a Holley 4 barrel and a distributor like an engine should have, it would be a no brainer and burning the $5.50 gas like only a big block knows how. This electronic bs has me perplexed. I have not checked spark, and my next thought was to check compression on the cold cylinders. It rolls over like normal (I've heard hydrolocked engines with bent valves try to start and it doesn't give me that impression).
Anyone else have a VP with an MEFI 4 ECM that just won't tell you why it won't start even with the electronics scanned and telling you it's ok?