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hi.fault codes indicate feul presure or leaks.if feul presure is ok and no vacuum leaks at vacuum pipes intake manifold or brakebooster it can be a exhaust leak if no leaks it can be a blocked cat or not enough back presure like exhaust box removed or cat insides removed .hope this helps
Look on the passenger side of the engine compartment. there should be a small black vacuum line that runs from the engine, to the heater box, through the heater box and through the firewall, into the passenger compartment. That hose/plastic line is broken. Find it and your system should work properly
code p0087 is pressure too low--- causes include fuel supply pipe blockage and code p0088 refers to fuel return line blockage. While you have changed every thing covered in the causes I suggest you have a look for a common point that the pipes run together that could be kinked or squashed . The low fuel pressure could be from a vacuum in the tank from a faulty cap . If the lines are rubber and run in the boot check that something like a spare tyre is not cutting off fuel supply and return
I have seen two different problems with symptoms like this. 1. A leaking injector. If one of the injectors is leaking a small amount through the pintle on the end of the injector it will bleed the fuel system presure off and dribble fuel into the cylinder, fouling that cylinder. When you try to start it the fuel that has pooled into the manifold will create smoke when it does start. And since the fuel pressure has bleed off to zero PSI in the fuel supply lines it will need time for the fuel pump to recover the system up to normal operating presure. Presure testing (bench test) of the injectors is needed to verify this. 2. A bad fuel pump, relief valve, or bleed-back check valve will bleed the fuel system presure off while it is sitting. To find out if this may be the problem a fuel presure guage set needs to be installed and then run the engine, verify the operating presure is normal, and then shut the engine down and watch the fuel pressure for exessive drop.
The leaking injector is more apt to create the smoke when it fires up, but both can cause this. I would start with check #2 first. Of course there are many other things that can cause symtoms like this but these 2 are the most likely causes.
Hope this helps, if you have any further questions just ask!
The regulator is on the fuel rail on the driver side of the motor. Look for a vacuum line that plugs into the top of the regulator. If you suspect yours is bad, with the engine shut off pull the vacuum line off. If gas runs out then the regulator is bad.
The fuel pressure regulator is bleeding down fuel pressure into the vacuum line attached to it. Leave the vacuum line off as the vehicle cools and you will see it leak out.
check the fuel presure reg but first check fuel ammount place fuel line un hooked in 1 galon glass jar turn ignition to run position container should fill quickly mesure fuel amount from single cycle call dealer ask what flow amount should be with single purge cycle
this will tell you if pump or filter are problem it will allow you to see if fuel filter is pooched and **** is bypassing also or if it is pluged
if results proper or close to dealer spec check fuel rail for bad fuel presure regualor if reg bad there will be little or no fuel presure even during purge cycle if flow high and finger cant hold presure if is usually fine and reg is bad pick up new reg from salvage it will cost 5 - 20 bucks and if a likely culprit
put in on a vacuum gauge and watch it untill warm up. the gauge should be steady all throughout the idle and when you punch it. sounds like an intermittent vacuuum leak. listen for hissing in the engine comparment. put it on a scanner if it keeps it up. its time for new vacuum lines.
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