Problem after problem 99q45

[Shawn_hollen]

I can not catch a break with my q45 has 185k miles It. I've posted a few thing on here in the month I been apart of this form things keep going wrong and don't know what to do. I have replaced so much and spent so much money the past 3 months on it. I had misfire cylinder 7 code just a couple weeks ago or so. I replaced plugs,coils, maf sensor, secondary throttle position sensor, all 4 o2 sensors, a/c compressor(I did run without it for a while till I found one on line ),just about all vacuum hoses, alternator, battery, wheel sensor just one of the radiator and hoses, knock sensors.cant think of the other stuff at the moment

[Shawn_hollen]

Sorry didn't post what's going on it started missing out yesterday and check engine light came back on after I finally had it clear for a couple weeks. The check engine had been on for a year and a half was going thu ugly divorce at the time. I am have been having to take EGR valve out and clean it once a week well I just cleaned it 2 days ago and that's us probably what the code is so now. I am really broke don't have cach to get a new EGG valve so what could

[AZhitman]

The '99 Q was an expensive, high-end luxury car. Typically, maintenance is postponed by prior owners, and the result is nothing more than a parts car.

People who think they can "rescue" a neglected Q are delusional - especially on a college student budget.

Recommendation for your situation: Cut your losses, part it out, and buy a simple, reliable, gas-sipping econobox for $1000.

[Shawn_hollen]

Thanks for the advice but I'm the kinda guy that won't part out a car or get rid of it until there is no more life in it. I understand it's a high-end luxurie car but it is also still a car and the engine runs like my 92 s10 just a bit more accessories and sensors. I am not trying to be rude or come mean or crappy or anything like that. The first year in a half all I heard was its a Infiniti u have to have Infiniti people only work on them and replace anything. And I also have to buy the most expensive parts. And since I have started working on it the last 3 months and been reading stuff on here and other forms. It's not as complicated to work on them like so many people tried to make it out to be. I have been around engines and cars my whole life thay all work the same when u get to the basics of how the engine turns the wheels to get to point a to point b. I know this post reads like I'm being a a-hole but its not how I am meaning it. This is the second time u told me in a post that it's a high-end luxury car,well I'm the one that bought it I knew that then and still know it don't need to be told. That part was ment to be rude sorry if it broke any form rules. The body the inside is in very good condition for a 99 car with 185k miles and even with all the problems I've had the engine still has very good power even when it was missing really bad it still responded well when I smashed gas. And it will not take long to get my money back right to put the parts on that I want to put on and to keep up maintenance on it. I said money wasent right because of all repairs. There is other reasons why cash flow is low I have 4 kids a wife house payment wife's car payment bills and all of my kids my wife's and my birthdays r within 2 in ahalf months starting in April so it's buts time every year with cash flow. And why u mention something about being a collage student.

[Shawn_hollen]

I'm sorry I didn't mean to cause any problems or others getting crappy and being a smart a$$ to each other. But I felt that AZhitman was kinda being a little towards me in a way. I only post on here to get advice incase I am over looking something. He knows he has told me another time that my car is a high-end luxury car so no reason to post it again, and the college student budget was way uncalled for. He don't know me or anything close to make that comment. I have 3 other cars and this Infiniti is my play car it is really not a top priority. I bought it 2 years ago for my ex-wife she wrecked it and then while we were going though a long drawn out divorce she had it. And let dudes drive it and didn't take care of it. Then I got it back though the divorce I messed with it a little got it running smoothly and seems that the new parts I have put on it is messing up old parts. I know when a car or motor needs to be scrapped out and this one is far far from it.

[AZhitman]

Understood 100% - and no offense taken.

My point was that even if you do all the work yourself, the parts aren't cheap, and if it has been neglected, you may be throwing good money after bad. I've been doing this for 15 years, and I've seen a lot of Q owners come and go... just sharing lots of years of experience with ya.

If there's a mechanical defect, you can replace every external part until you exhaust your budget, to no avail (I chased a bad valve in my 95 Q45 for almost a year before finally getting an accurate diagnosis.)

We'll help for as long as you want to keep wrenching (that's what we're here for). Have you pulled the FSM for your car yet? Also, what codes is it throwing? (Unlike your 92 S10, each code can have a LOT of different causes - the only similarity between them is that they're internal combustion engines.)

[Shawn_hollen]

No codes it had knock sensors 1 and 2 replaced them had the secondary throttle position sensor fixed that had cylinder 7 misfire replaced all coils and plugs had o2 sensor replaced all 4 had Mass air flow sensor replaced it wheel speed sensor replace both back ones had EGR valve code just replaced it 2 days ago think that was it had all them codes all at once

[Shawn_hollen]

Now the check engine light if off still has a little shimmy at idle and when I stop while in drive still don't respond like it should when I first get on the gas till 3rd gear then picks up like it should it's not real bad but enough to notice and don't do it all the time. I was told to do a Seafoam cleaning on it so think I might try that this weekend

[AZhitman]

http://www.nicoclub.com/archives/how-to ... t-way.html

I'll check back after you do that and see how things are coming along.

(I'm sorry - I'm having a tough time following your posts... everything is all run-together. We'll have a lot easier time helping you diagnose things if you'll take your time, split things up into categories, and throw a comma or period in once in a while. )

Thanks Shawn - I'll pop in tomorrow or Saturday for an update!

[Shawn_hollen]

Lol ok thanks sorry about things running together I'll work on that