GOT A 90 Q45 AND NEED SOME HELP OR IDEAS

[131-in-a-Ls]

well i just picked up a 90 a couple of weeks back and have run into some problems that i cant seem to figure out. its got 127 k interior kept up and as well as the body other than the clear fading on top, trunk and bumpers. the engine bay didnt seem to have any quick fixes in it. heres the problems i m getting. about 85 percent of the time the car wont let me go over 2000 rpm. it feels like its got the rev limiter coming in at 2k. it will just sit there and bounce off of it.as long as i dont rev it all the way to 2k it will shift fine and the whole bit. ive tried a couple of tricks, for example ill light pedal it all the way to say 35-40 mph, drop it into low 1 wait till the tach reaches 4k and hit the gas.deosnt work! it ll just climb back down to under 2k and bounce off of it. the times that it deosnt do it. it hits all the way to 7k. on occasions of normal operation i ll floor it all the way. its starts hualling *** then bogs out. and starts its way back to 2k on the tach. once that occurs the car wont let me pass 2k from that point on. so i got to light throttle the rest of my drive. i m pretty good with backyard mechanics, so what i do know is that its cutting spark out at 2k. much like a rev limiter.on top of that no "check engine" light. just a "transmission malfunction" read out on the info center every 2-3 starts. any ideas out there i m willing to try anything. wanna hual *** in it already. meanwhile i m on my way to the V.I.P. room. taking off the purple tint and fixing the small electricals here and there. waiting to start the paint.

[qship96]

Check the throttle position sensor........and read up on the chain guides before you drop another penny on cosmetics or a tank of gas.

[Infinitiguy19]

Might also want to check the ECU for a MAF sensor code because it could be the MAF sensor or connector to it that's loose.

To check ECU codes: http://www.nicoclub.com/articles.php?id=60332

Try wiggling the connector while the engine is running and have some look at the RPM's

Also look into replacing the fuel filter, Because on my first Q45 I replaced that and the problem was solved.

To check an possibly resolve the Transmission Malfunction message: http://www.nicoclub.com/articles.php?id=217453

Please don't "trick out" a sick car fix whats wrong with it then do what ever you want.

Get the service history from an infiniti dealer its been at in 7 years

Get a car fax report if you haven't got one already

Welcome to NICO

[maxnix]

And read all of Q45tech's posts here after you read the FSM so you can come to grips with what needs to be done.

http://www.nicoclub.com/FSM/Q45/

[unknown007]

And read all of Q45tech's posts here after you read the FSM so you can come to grips with what needs to be done.

http://www.nicoclub.com/FSM/Q45/

First off make sure the car's engine is in good condition after that i suggest you ask for ideas.

[Q451990]

That 2K deal is something in fail-safe mode... either the MAF, CAS, or maybe the transmission? I would pull ECU codes and go from there.

Welcome to NICO!

Heath

[131-in-a-Ls]

chain guids have been done. in matter of fact i bought if off my boss. so he was kinda up to date on the vehicle. before he had it he bought it off a doctor who traded it years years back. the car has been sitting most of the time as far as i know. he has a 4 banger hes been using for a couple of years now. i ve been trying to get this car off of him for about 5 yrs, finally i get it and i get all this. ive noticed if a cars sits a while the electrical geos funky. its happend to me on my 90 integra. sat for about a yr then got problems when i started using it.anyways ill give that maf a shot ive disconnected the tps and it ran the same letting go to 7k then back to 2k. one thing i havent tried is the error codes. dont got a manual on it. know where i can get a copy off one???? also are these obdo 1's. in other words is there a daignostic port i can hook up a scanner to?? i ve had a 00' I30 and was pretty good with that one. but this Q45 is kicking my ***. another thing. when i park the Q on a incline it wont start i got to get to a flat surface only. im thinking its the line from the fuel pump to the gas itself. has anyone else had this problem? it ll do it only if i got a half a tank or less. THANKS FOR HELP GUYS I M REALLY DIGGN THE SITE. ILL BE ON HERE MORE OFTEN AS I CAN. ILL GET PICS UP SOON.

[Infinitiguy19]

The site in my first post tell you how to read the codes off the ECU and no you can't go to Auto Zone to check the code because that's OBD2 and up.

[Q451990]

The no-start on an incline makes me think that you may have a bad fuel pump. I've never heard of a failure that way, but I would check your fuel pressure.

Heath