XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
i dirve five mins, 1 mile and the headers are glowing......
-
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Engine Prob
- Thread starter XBoBJ
- Start date
billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
maybe try cleaning yours first with some carb cleaner
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
been there done that..... no prevail im so lost its gotten worse the last 2 days
billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
3 things, i just called my buddy who is a head mechanic at spartan
if you take the vac line off the fuel pressure regulator and see if the idle goes down. it could be the fuel pressure regulator
MAF sensor is the most common problem on these, he said replace that first.
the he said if it isnt charging right it will run like crap
did you do the crank 3 times to get the code thing? i dont feel like reading back, is the check engine light on?
if you take the vac line off the fuel pressure regulator and see if the idle goes down. it could be the fuel pressure regulator
MAF sensor is the most common problem on these, he said replace that first.
the he said if it isnt charging right it will run like crap
did you do the crank 3 times to get the code thing? i dont feel like reading back, is the check engine light on?
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
no CEL light i wish there was then i would know what to replace, should i go for the maf where do i find one
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billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
did you do the turn the key thing to get whatever codes were in there?
i'd say do the maf first, if you dont want to spend the money on a new one, get one used at sams just to see if thats it
i'd say do the maf first, if you dont want to spend the money on a new one, get one used at sams just to see if thats it
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
im pretty sure thats it
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
do i have to goto the dealer to get a MAF?
billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
technically 98 and up XJs have a MAP sensor and not a MAF sensor, napa should have one.
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
no wonder i couldnt find it 100.00 bucks. ouch thats and hour a mechanic could spend figuring out that its not the MAP.i think im just going to take it somewhere
91Woody
NAXJA Forum User
- Location
- Manchester, NH
AutoZone in stock for 68.99 if NAPA isn't available. Advance has a BWD MAP sensor for 93.99 in stock...local to me anyway.
91Woody
NAXJA Forum User
- Location
- Manchester, NH
but if it is the sensor, the mechanic is going to charge you labor AND $200 for the same sensor. besides, trail spares are always good 
I'd get a manual and check the voltage going to the sensors first, then test the sensors. It won't take that long and it's free since you already have the multimeter.
I'd get a manual and check the voltage going to the sensors first, then test the sensors. It won't take that long and it's free since you already have the multimeter.
billyjp2
NAXJA Forum User
- Location
- Indian Orchard MA
all the shop is gonna do is plug in parts till they find whats wrong, mine as well eliminate the middle man...
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
but if it is the sensor, the mechanic is going to charge you labor AND $200 for the same sensor. besides, trail spares are always good
I'd get a manual and check the voltage going to the sensors first, then test the sensors. It won't take that long and it's free since you already have the multimeter.
ill do this tomorrow, ill see if i can borrow some sensors....
heres a current list as to where im at with this.
1. cat has been hollowed.
2. tune up done.
3. timing is correct.
4. compression test done, all between 125-150.
5. upstream 02 is new, factory.
6. no CEL light
92XJPortageWI
NAXJA Forum User
- Location
- Flagstaff,AZ
buy a fuel pressure guage, cheap ones can be had. sounds like a fuel pressure issue(to high).
just my .02
just my .02
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
what would cause it to be too high
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
pressure is @ 26-30
92DripCherokee
NAXJA Forum User
- Location
- Tampa, Florida
glowing headers are a sign of running too lean. A large vacuum leak could cause this. the high rpm stumble is also consistent with this.
so my vote is running lean, from a large vacuum leak. Or a slipped timing chain.
ps. If that fuel pressure is staying low at high rpm, that could be causing a lean burn too.
so my vote is running lean, from a large vacuum leak. Or a slipped timing chain.
ps. If that fuel pressure is staying low at high rpm, that could be causing a lean burn too.
XBoBJ
NAXJA Forum User
- Location
- Spencer MASS
it goes lower when i reved it up with the gauge on it, could i have a bad fuel pump? staving it from gas causing it to run lean and then sputtering out and getting gas when the exhaust vavle is open? it only does the back firing thing when im hard on the gas.... is the pump not keeping up? also wouldnt a vaccume leak show a CEL
im an idiot it cant get gas when the ehaust valve is open........................EDIT
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