Question about Cars & Trucks
Vauxhall Astra 2003 2 ltr chain driven cam model.new glow plugs, egr valve,fuel filter with seals leak of pipes, no visible fuel leaks under bonnet or car. So why won't it start when I leave it for 48 hours standing. It's got a very good battery, and starter. This only happens when it's freezing. The next thing I may change is the fuel filter housing I have been told there may be a heating element in there as ther are wires going to it any help would be appreciated. Oh,by the way ,it's an automatic. Many Thanks, Peter
Posted by Anonymous on
Check thtat the glow plugs are actually working ( relay or fuse probnlem)
check the pressure valve that holds line pressure to the injectors
have the injectors overhauled because if just one leaks down the residual pressure is lost
Posted on May 12, 2017
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Posted on Jan 02, 2017
I don't have the solution but a possible help in diagnosing. If you remove the water temperature sensor connector from the sensor, the glow plug light should stay on when you go to start the car. Try leaving it on for 15 seconds and then start the car. If it starts right away, it is your sensor. If it doesn't, the good luck.
The sensor is located on the right side of the engine near the top, at the back. It is in the coolant fitting directly behind the hose from the rad, just left of the thermostat. Be careful to disconnect the wires, and not remove the sensor, or you will loose a lot of coolant. The sensor is held in by a separate plastic clip, and the harness just has a little built in clip on the side. Hope you have small hands...
Posted on Jan 06, 2009
Please go to the crossfire injection forum to get some straight answers to the 82 corvette CFI system and how to troubleshoot it properly. There's a lot of misinformation given here, so much so, I don't know where to begin.
One thing is, the 82 corvette CFI does NOT have a MassAir Flow sensor system, it uses MAP and O2 mostly. The CTS sends a signal to the ECM telling it what the temp of the motor is and in turn the ECM controls the amount of fuel being dumped. On the older (orignal) CTS sensors, they have one wire and takes its ground from the threads. If any coorosion takes place, usually the CTS will report a cold engine and request lots of fuel.
To repair this issue, install one of the newer style CTS sensors that have two wires, one for signal and the other is ground.
Fuel pressure and vacuum leaks on any CFI motor play key roles. Set the FP to 14-15psi measured inbetween the TBs. The regulator is located on the rear TB and must be slightly moded to make it adjustable and can be done in a few minutes.
Posted on Mar 07, 2009
seems you have a leak somewhere in the fuel system.check all lines for moisture from fuel. Leak could be anywhere between fuek tank and injectors. Check all fuel fittings, could even be a bad seal on fuel filter. An air leak is really hard to find at times. Patience is the key, may not be a real quick fix. Good luck
Posted on Feb 02, 2010
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