Scammed.

 

+1

Anyway you want a gsx !

 

you dont need the stock turbo gauge to start the car or run the turbo complete lie

 

Maybe he is talking about a AFC other than a bosst gauge?

 

After some pondering and phoning him again i found that if the mass airflow sensor is unhooked ( which for someone reason someone stole?) it will cause a nonstart. Because it tells ecu the wrong amount of gas to throw in. Causing a no start or sputtering engine. So So my next question is " Will my 2g mass airflow sensor bolt to the 420a intake? How hard would it be to switch. Remember this is a 420a turbo so intake is down by intercooler on driver side. Should I be able to swap it right on the spot and start it up?

 

Missing maf will not cause a no start issue. It will run like complete doo-doo, but it will start. It will also throw a code almost immediately. He may have had an SAFC to dial down his injectors which would be necessary when adding a turbo to a 420a, but you'd get MORE fuel rather than no fuel.

Another thing to consider is closed/open loop. On a cold motor, it should be in closed loop, so it's not necessarily utilizing a MAF signal. This may not be 100% true for DSMs since I'm still relatively new to them, but I've tuned plenty of other fuel injected vehicles that have a closed and open loop fuel table.

Something is fishy.

 

^^Your understanding of closed loop/open loop operation are backwards.
OP, avoid that car like its got the hiv. You'll get more enjoyment on the quad.

 

Either way, without the MAF hooked up it will start and run. This is a fact. Rich yes, but run none the less. My understanding of closed loop was the ECU does not use the MAF and o2 signal to calculate an a/f mix, but has a pre-set rich safe mix to run at. Just like when your car is cold at start up. It does the same thing.

Point being, this car is bad news. Do not trade for it. He is likely scamming you.

 

My roomie's car won't start with the MAF discconected. We forced it once by push starting it, it ran and barely idle'd. Once I noticed he left it off I plugged it in and idle'd fine. It wouldn't start on it's own and drained the battery, so I have seen where this could happen. Car was a 91 Talon TSi....

 

Well interesting. I had have started my car without the MAF plugged in. Thats odd. I drove it a few blocks also, limped it back to my house. It was a 2G, but not the 420A, so as far as using a turbo MAF you cant!

 

420a cars do not have a maf. The guy is full of shit.

 

I was thinking the same thing...

 

Open loop = no input.
Closed loop = input from sensors.

During start up or WOT the car would be in open loop...
But that dosen't matter here as the 420a uses a MAP sensor not a maf so the kid is full of shit in the 1st place.

 

Performance=1G
A Cool looking car=2g

I personally think a 1g looks better then a 2g but alot of people would disagree with me. Basically I would avoid the car the guy is trying to sell you and then look into getting a good deal on a 1g with a 4G63 engine. I would avoid the 4g64 7 bolt motor that is in a 2g because honestly people who own 2g's take the 7bolt motor out and put 4G63 motor from a 1g in, do I need to say more.

 

I would avoid the 4g64 7 bolt motor that is in a 2g because honestly people who own 2g's take the 7bolt motor out and put 4G63 motor from a 1g in, do I need to say more.

You have been here since 07 and you are spreading shit like this? Do you even know what model the 4g64 comes in?

 

I have a bridge I'd be willing to trade for that 4 wheeler...

Jordan

 

As stated before, I made an error in my post.... it was late and all and just had it backwards. Regardless, listen to the others in terms of the MAF/MAP deal.

On a side note, closed/open loop can be considered as circuits. Open loop, the circuit is open so no signal is being "sent" or used by the computer. In contrast, in closed loop the "circuits" between the sensors and computer are "connected" and functioning together.

 

Well he said he ecu is pouring to much gas into engine and it won't start. And ya I know non turbos don't have maf they use map right? I have read that bad maf's do cause no starts or if they do they run like absolute crap. This car looks good and buddy sounds like he knows what he is saying. He said some kids smash his window and cut off his meter so it's just pouring gas in cylinders. I have no experience with 420a, only 4g63t, especially a turboed one

 

A bridge? What?

 

Lulz ^



Never mind :dunno:

 

just dont buy that shit... get a gst or gsx

 

Thanks guys. I'm staying far away from that piece!

 

All I can say is I had a 1996 gs 420a and no MAF so I don't know where he got that. And to much fuel is not gonna make it not start just run like crap. Sounds like timing problem or broke timing belt. Just trying to pawn it off on you not worth the time fixing a N/A 420a turbo setup. A lot of bugs to work out if he didn't do the setup right.

 

Avoid this car at all costs...PLEASE.

 

lol, if the cylinders only get fuel and no air there must be a problem with the timing or the throttle. Or there is something fat clogging the intake. It's impossible that a broken map / maf can cause this since it regulates the injection.

 

I would find someone with a GSX and trade for that . Even a GSX is better not running then what this guy is trying to trade. Stay away from it I would he more than likely blew it up or fried something. To me it sounds like the timing belt is gone or jumped time. But one thing I do know is my eclipse gs "420a" not 4g64. It jumped time I had a hydraulic tensioner go bad and It jumped way out of time almost 180 out. Car would still start just would not idle had to hold the gas. So either the belt broke and done some real damage. Or he has fried something badly but this just my 2 cent. I would not buy it thats the bottom line.

 

Have to agree with everyone else, hold on to your quad and use it in trade plus cash or sell it to grab a nice Tsi or GS/T/X. You won't regret it but it sounds like you'll be kicking yourself forever if you get this guy's car.