Saturday, January 24, 2009 - 05:44 am, by: Sean Tonkin(Shorn)
Ok, I'm asking for "replace fuel pump" instructions for beginers. Stock fuel pump died (or at least i think it did). I've replaced it with a walbro 255 as it was, new and readily available. My car was already out of action for a week so I was getting a impatient. Anyway, i've installed the new one. Works fine. Could see the fuel coming out the top of it when i did a quick test before putting everything back together.
Car still won't start. Going to replace the fuel filter next. Mechanic "claimed" to have done it about a month ago but when i lookrd at it (under passenger side rear wheel) i don't think it has been replaced in years. so my questions are :
1) How do you get the bl**dy fuel filter off ? Had a go but stopped for fear of braking something. 2) Is there anyhting alse i should have done after putting in the new fuel pump ?
I'm sorry if these are basic issues that have already been discussed but i've done about 10 searches and nothing comes up that deals with a "how to" on this issue.
Tuesday, February 03, 2009 - 11:38 am, by: Tom Richards(Tomr)
on the lhs of the engine, near the pvc valve is a fuel regulator.
it has a round top on it with a philips head screw in the middle. after cranking the engine, the philips head will be "up' showing you have fuel pressure. if it doesnt come up, you have no fuel pressure. Also at the diagnostics port short FP to B+. this will put 12v direct to the fuel pump, bypassing the fuel pump ecu.
Thursday, February 05, 2009 - 03:57 pm, by: Sean Tonkin(Shorn)
Hey Matt, Mathew and Tom.
Thanks for your tips and advice. It helped me establish that the problem has nothing to do with the fuel pump. I've got fuel pressure all the way up to the engine.
It's just not starting. Maybe it's another electrical problem. It could be spark. It could be the injectors, i just don't know.
I get the feeling that this could be an expensive problem, which i simply cannot afford at the present time. It's been out of action for 3 weeks now and i have no transport. Getting more than a little frustrated.
Thursday, February 05, 2009 - 04:06 pm, by: Matt Petersen(Mattmannz)
Next step is to check for spark which is pretty easy.
If you have fuel pressure at the rail it's unlikely, though not impossible, that all the injectors aren't firing. The injector drivers are batched so if it's an ECU fault then some of the injectors should be going.
To check for spark pull a plug on each side of the motor and leave it connected to the plug wire and lie the plug against the block. Crank the motor and check for spark at each side.
I assume you have checked the major fuses in the engine bay to eliminate the simple stuff.