Stalling.

Started by meltboy11, August 02, 2007, 07:21:51 AM

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meltboy11

Quote from: TGP Nick on August 06, 2007, 08:46:25 PM
Oh and with the bad injectors, it would die almost every time I stopped.  If you have original injectors in your car, there is a good chance that they are bad.

I don't  think I mentioned this before, but the car has less than 52k miles on it... so I can't see them being shot, but it happens...
It doesn't die every time I stop,... I just doesn't want to start, and doesn't like anything over half throttle... When I did get it started to get it home, it ran fine as long as I babied it like a gramma... if I tried to give it anything, it told me to go to hell basically..lol

Plus I don't have $300 to buy great injectors, or I woulda bought that front bumper that is being sold on here...lol
Mebbe if need be I will try to get some injectors in the junkyard... idk, this car is pissin me off more by the day...
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

TGP Nick

Yeah that sounds exactly like how mine ran.  And yes injectors can die even with that low mileage- they are electronic, so they can die that way and they can get plugged with a LOT of junk after 18 years.  I got 6 new C302 injectors for $250.
Nick
1989 Pontiac Turbo Grand Prix- LG5 - 4T60HD
2008 Ford Ranger XLT- 2.3 DOHC I-4 - 5MT
2012 Nissan Altima SR coupe- 3.5 V6 - 6MT

GOT2B GM

I have a set of 6 C302 injector that have less than 100 miles on them. I thought my injectors were bad but they weren't, and five o motorsports don't take returns.

I'd be willing to part with them for 150 USD if you decide you need some injectors.


Matt Shantz - 1990 Pontiac Turbo Grand Prix COLD A/C 80K mi, KAZ Hot Tuned, Birchtrax'ed +  a few mods  ......... 14.6829 @ 95.11 mph

grinders_18

Meltboy, if you can afford it, take him up on this offer. You will not find them cheaper, and in the long run, it's cheaper than having your old ones pluse cleaned.

This radio station was renamed Krenzy in honor of the last American hero to whom speed means freedom of the soul. The question is not when he's gonna stop, but who is gonna stop him.

meltboy11

#19
I will let you know tonight via PM if I will be buying them, I just want to make sure that is the problem before I buy them, not that I am doubting you, but I just want to be sure... )
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

GOT2B GM



Matt Shantz - 1990 Pontiac Turbo Grand Prix COLD A/C 80K mi, KAZ Hot Tuned, Birchtrax'ed +  a few mods  ......... 14.6829 @ 95.11 mph

meltboy11

#21
Ok... Got another engine code today, 33 for the MAP sensor... went to the junkyard and grabbed 3.... And go GM... the turbo uses a different MAP Sensor than the normal 3.1s... the connection is just different enough that they will not fit, I even tried my moms 91 regal, and that one was different too.... and the inside connector of the one off my Prix was orange, instead of black, and it looks as if someone had tried to change it before, cuz the little clip on it was broken.  Also, had the fuel pressure checked, and it was runnin around 33-36 or so, and I checked my friends 94 to compare, and his was about the same. So looks like I will grab those injectors from ya, I will PM you some info and we can work the deal out...
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

GOT2B GM



Matt Shantz - 1990 Pontiac Turbo Grand Prix COLD A/C 80K mi, KAZ Hot Tuned, Birchtrax'ed +  a few mods  ......... 14.6829 @ 95.11 mph

meltboy11

Someone had mentioned the MAP sensor earlier... call me a dummy, but what exactly does the MAP sensor do.... just for kicks I unlpugged it, and it started up better than it normally does, idled a lot better, but wanted nothing to do with reving the engine, it sputtered like crazy... and unfrotunatly, after doing a little research, it appears that I can only use a MAP for the Turbo motor, no other MAP will work, so it looks like I might be stuck shelling out another $60 or so for one, unless someone might have an extra one collecting dust somewhere they might want to part with... lol
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

GOT2B GM

it senses the manifold pressure and applies the right amount of gas with the right amount of ignition timing so the car runs and performs well


Matt Shantz - 1990 Pontiac Turbo Grand Prix COLD A/C 80K mi, KAZ Hot Tuned, Birchtrax'ed +  a few mods  ......... 14.6829 @ 95.11 mph

meltboy11

that would sure explain the stalling then...lol well at least ima have a nice new set of injectors, and map sensor now thanx to you... :)
Will update when I get em in and installed and let ya guys know how it's running... :)
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

meltboy11

Put in the MAP and the injectors today, and it's like a totally different car, runs awsome!!
Still having a slight issue though, idk if it's cuz I had the battery disconnected and the car is relearning stuff, but when I am WOT at higher speeds, it still cuts out a little bit, it doesn't stall, but it's like the turbo just stops workin, the boost just goes down to 0, or below,  and the RPMs stay at close to 5k or wherever it was at that time. I was also curious, the connector on the front of the plenum, with the lines from the wastegate, that is the actuator right?... why is there one spot where there is no vacuum line?
Also with boost... Where should it be at idle, I am way in the negative, is that normal? And also when I am at idle, and rev it, even though it only revs to 3k, it seems the wastegate doesn't move at all, is that also normal, sorry to ask so many noob questions, but I basically know jack about turbo vehicles, so this is a big learning experience for me.
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

Prospeeder

Do u have the stock airbox? My TGP did the same thing, the boost went to 0 at high rpms, it turned out the airbox hosing was collapsing. Everything else sounds pretty normal
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

meltboy11

ya, I do, I will be ordering a cone next week if I have the extra money.


Update though.
I do think it was just the computer relearning, I took it out quite a bit last night and today, drove to the upstate ny club GP meet, which was about 170 miles away, and the car ran fantastic, wasn't cutting out or anything and very responsive. Only thing is at idle, sometimes it's a little choppy, I think it's just the car, it doesn't like not moving... it always wants to go...lol
90 TGP ~70k miles 5/15
04 Wrangler 4.0 5 spd
Litchfield, NY

TGP Nick

Quote from: meltboy11 on August 11, 2007, 06:41:55 PM
it doesn't like not moving... it always wants to go...lol
Theres Pontiac for ya :laugh:
Nick
1989 Pontiac Turbo Grand Prix- LG5 - 4T60HD
2008 Ford Ranger XLT- 2.3 DOHC I-4 - 5MT
2012 Nissan Altima SR coupe- 3.5 V6 - 6MT