88 lx 5.0 needs help!

DaLe five OH! · 12-05-2007, 11:49 PM

change all the plugs out again

Dark_5.0 · 12-06-2007, 12:12 PM

Yeah change the plugs again. If that doesnt work check the temp of the header tubes to find a potentially dead cylinder.

pearce9906 · 12-06-2007, 12:28 PM

Thanks for the direction guys. I work tonight so I'll try swapping out the plugs first thing in the morning.
By the way, do you think it's possible fuel would have gotten into the sensors through the vacuum lines and ruined them? like the MAP sensor and the rest that have vacuum lines attached?

Thanks again, I'll let you know what I come up with.

Dark_5.0 · 12-06-2007, 04:56 PM

Quote:

Originally Posted by pearce9906

Thanks for the direction guys. I work tonight so I'll try swapping out the plugs first thing in the morning.
By the way, do you think it's possible fuel would have gotten into the sensors through the vacuum lines and ruined them? like the MAP sensor and the rest that have vacuum lines attached?

Thanks again, I'll let you know what I come up with.

I hydrolocked my 300zx last summer and it kept fouling the plugs cause water was pooled in the intake manifold. I removed all the spark plugs and jacked the car up on one side high as it would go to make all the pooled water run out of the intake and into the cylinders, then I turned it over in 20 second burst a few times and that seemed to work pretty well. All the water shotout the spark plug holes.

pearce9906 · 12-07-2007, 02:20 AM

This one was hydrolocked also, after the original regulator blew, before I changed plugs, when I took the old (original) plugs out, I turned it over in several short bursts and blew the fuel out of the cylinders, it was fuel. Yours was water?

Dark_5.0 · 12-07-2007, 07:19 PM

Quote:

Originally Posted by pearce9906

This one was hydrolocked also, after the original regulator blew, before I changed plugs, when I took the old (original) plugs out, I turned it over in several short bursts and blew the fuel out of the cylinders, it was fuel. Yours was water?

Yeah I drove through some deep water and well you know the rest.

pearce9906 · 12-14-2007, 12:48 AM

Well, I changed plugs out again, to no avail. EGR was bad, replaced it, as well as TPS, still not fixed. Noticed there were two vacuum solenoids on the right front inner fender on the the rear of the engine compartment that were damp with some gas, presumably from where the reg went bad and flooded the plenum and vacuum lines, I took them apart and cleaned them, that seemed to do the trick with getting the car running right and taking out the majority of the miss. But now I have severe idle surge, almost dropping to the point of killing itself, also running super rich. I've tried almost everything I can think of to narrow the problem down, but am having a heck of a time with it. Any ideas?
Keep in mind, I have just bought this car and don't have much idea about what mods previous owners have done to tune the car.

12-05-2007, 11:49 PM	#1
DaLe five OH! Registered Member Join Date: Nov 2006 Location: Naples FL Posts: 106	Re: 88 lx 5.0 needs help! change all the plugs out again __________________ ZEX

12-06-2007, 12:12 PM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: 88 lx 5.0 needs help! Yeah change the plugs again. If that doesnt work check the temp of the header tubes to find a potentially dead cylinder. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

12-06-2007, 12:28 PM	#3
pearce9906 Registered Member Join Date: Nov 2007 Location: OHIO Posts: 20	Re: 88 lx 5.0 needs help! Thanks for the direction guys. I work tonight so I'll try swapping out the plugs first thing in the morning. By the way, do you think it's possible fuel would have gotten into the sensors through the vacuum lines and ruined them? like the MAP sensor and the rest that have vacuum lines attached? Thanks again, I'll let you know what I come up with.

12-07-2007, 02:20 AM	#5
pearce9906 Registered Member Join Date: Nov 2007 Location: OHIO Posts: 20	Re: 88 lx 5.0 needs help! This one was hydrolocked also, after the original regulator blew, before I changed plugs, when I took the old (original) plugs out, I turned it over in several short bursts and blew the fuel out of the cylinders, it was fuel. Yours was water?

12-14-2007, 12:48 AM	#7
pearce9906 Registered Member Join Date: Nov 2007 Location: OHIO Posts: 20	Re: 88 lx 5.0 needs help! Well, I changed plugs out again, to no avail. EGR was bad, replaced it, as well as TPS, still not fixed. Noticed there were two vacuum solenoids on the right front inner fender on the the rear of the engine compartment that were damp with some gas, presumably from where the reg went bad and flooded the plenum and vacuum lines, I took them apart and cleaned them, that seemed to do the trick with getting the car running right and taking out the majority of the miss. But now I have severe idle surge, almost dropping to the point of killing itself, also running super rich. I've tried almost everything I can think of to narrow the problem down, but am having a heck of a time with it. Any ideas? Keep in mind, I have just bought this car and don't have much idea about what mods previous owners have done to tune the car.