95 Impreza L w/ 2.2L engine won't rev over 4100 RPMs - any thoughts?

marcus12 · 11-02-2004, 11:16 AM

Checked MAF sensor, replaced O2 sensor, replaced plugs and wires, replaced Camshaft Positioning Sensor, running good gas...Car stopped revving over 4100 rpms!

Could it be a Crankshaft Positioning Sensor? Feels like the car's running really rich and smells like it too.

Only mods are a cold-air intake, and WRX catback exhaust.

Any suggestions are greatly appreciated!

//marcus

DLC · 11-02-2004, 12:28 PM

Had a similar problem with an 84 RX-7 GSL-SE. The cat was up to about %25 backpressure.

Does it hit a wall at 4100, or kinda creep up there and not run well?

rabbitnutz · 11-02-2004, 01:04 PM

could it be in limp mode ? try resetting the ECU by removing the negative battery cable for 10 minutes, and before you put it back on, step on the brakes a few times.

marcus12 · 11-02-2004, 01:44 PM

DLC - it just hits a wall - like it's topping out. The engine shakes really hard and the car bucks until I let off the gas.

rabitnutz - have tried to reset ECU multiple times to no avail.

Oh, more info - looks like I have a CEL with two codes:
17 and 23 for OBD-I. I think they are Cylinder 3 misfire and MAF sensor respectively. MAF checked out fine and the replacement of spark plugs and wires should've taken care of the cylinder 3 misfire.

Any other thoughts guys?

//marcus

RyansJDMgc8 · 11-02-2004, 10:42 PM

Any mods?

marcus12 · 11-03-2004, 09:39 AM

just a cold-air intake filter w/adaptor for my stock intake tube and a WRX cat-back exhaust. Everything else is virtually stock.

I wish it were as simple as a bad MAF sensor, but when plugged in, the car works fine. When I unplug the MAF sensor, the car sputters and stalls. So I'm assuming it's working properly, otherwise the car would sputter and stall all the time.

thanks
//marcus

jamesfacts · 11-03-2004, 11:09 AM

I think the problem is you need a new shortblock... definitely an ej22T and maybe a vf22 too.

jamesfacts · 11-03-2004, 11:10 AM

Seriously, though: coil-pack?

DLC · 11-03-2004, 12:14 PM

Clear the codes out, reset the ECU if you haven't and see if you can get a different coilpack and even an ECU. It does almost sound like it's hitting the rev limiter, wierd.

marcus12 · 11-03-2004, 06:09 PM

I can grab a coilpack for cheap, so I'll try that out, thanks for the suggestion!

AmericanYouth - I had an EJ22T longblock and TD04, but decided to go with a ring for my girl...I shoulda turbo'd my car - it woulda been more fun

//marcus

jamesfacts · 11-03-2004, 09:57 PM

Yeah I know. It was a joke... G/L w/ the na - let me know if you need a hand.

marcus12 · 11-17-2004, 10:59 AM

Hmmm...any more thoughts?

//marcus

Pocon · 11-17-2004, 02:07 PM

Have you tried cleaning your injectors?

11-02-2004, 11:16 AM	#1
marcus12 Scooby Specialist Member#: 45613 Join Date: Oct 2003 Chapter/Region: NESIC Location: Columbia, CT Vehicle: 2005 Legacy GT Ltd. Satin White Pearl	95 Impreza L w/ 2.2L engine won't rev over 4100 RPMs - any thoughts? Checked MAF sensor, replaced O2 sensor, replaced plugs and wires, replaced Camshaft Positioning Sensor, running good gas...Car stopped revving over 4100 rpms! Could it be a Crankshaft Positioning Sensor? Feels like the car's running really rich and smells like it too. Only mods are a cold-air intake, and WRX catback exhaust. Any suggestions are greatly appreciated! //marcus

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11-02-2004, 12:28 PM	#2
DLC out back Moderator Member#: 1964 Join Date: Jul 2000 Chapter/Region: RMIC Location: 84XXX Vehicle: 01 BH Blue/Bronze	Had a similar problem with an 84 RX-7 GSL-SE. The cat was up to about %25 backpressure. Does it hit a wall at 4100, or kinda creep up there and not run well?

11-02-2004, 01:04 PM	#3
rabbitnutz Scooby Guru Member#: 51940 Join Date: Jan 2004 Chapter/Region: NESIC Location: boobs?	could it be in limp mode ? try resetting the ECU by removing the negative battery cable for 10 minutes, and before you put it back on, step on the brakes a few times.

11-02-2004, 01:44 PM	#4
marcus12 Scooby Specialist Member#: 45613 Join Date: Oct 2003 Chapter/Region: NESIC Location: Columbia, CT Vehicle: 2005 Legacy GT Ltd. Satin White Pearl	DLC - it just hits a wall - like it's topping out. The engine shakes really hard and the car bucks until I let off the gas. rabitnutz - have tried to reset ECU multiple times to no avail. Oh, more info - looks like I have a CEL with two codes: 17 and 23 for OBD-I. I think they are Cylinder 3 misfire and MAF sensor respectively. MAF checked out fine and the replacement of spark plugs and wires should've taken care of the cylinder 3 misfire. Any other thoughts guys? //marcus

11-02-2004, 10:42 PM	#5
RyansJDMgc8 Scooby Newbie Member#: 65462 Join Date: Jul 2004 Location: Riverside CA USA Vehicle: 01' 2.5RS Silver/Carbon Fiber	Any mods?

11-03-2004, 09:39 AM	#6
marcus12 Scooby Specialist Member#: 45613 Join Date: Oct 2003 Chapter/Region: NESIC Location: Columbia, CT Vehicle: 2005 Legacy GT Ltd. Satin White Pearl	just a cold-air intake filter w/adaptor for my stock intake tube and a WRX cat-back exhaust. Everything else is virtually stock. I wish it were as simple as a bad MAF sensor, but when plugged in, the car works fine. When I unplug the MAF sensor, the car sputters and stalls. So I'm assuming it's working properly, otherwise the car would sputter and stall all the time. thanks //marcus

11-03-2004, 11:09 AM	#7
jamesfacts NASIOC Supporter Member#: 51282 Join Date: Dec 2003 Chapter/Region: Tri-State Location: Brooklyn NYC / Danbury CT Vehicle: 98 RS black & blue from parking	I think the problem is you need a new shortblock... definitely an ej22T and maybe a vf22 too.

11-03-2004, 11:10 AM	#8
jamesfacts NASIOC Supporter Member#: 51282 Join Date: Dec 2003 Chapter/Region: Tri-State Location: Brooklyn NYC / Danbury CT Vehicle: 98 RS black & blue from parking	Seriously, though: coil-pack?

11-03-2004, 12:14 PM	#9
DLC out back Moderator Member#: 1964 Join Date: Jul 2000 Chapter/Region: RMIC Location: 84XXX Vehicle: 01 BH Blue/Bronze	Clear the codes out, reset the ECU if you haven't and see if you can get a different coilpack and even an ECU. It does almost sound like it's hitting the rev limiter, wierd.

11-03-2004, 06:09 PM	#10
marcus12 Scooby Specialist Member#: 45613 Join Date: Oct 2003 Chapter/Region: NESIC Location: Columbia, CT Vehicle: 2005 Legacy GT Ltd. Satin White Pearl	I can grab a coilpack for cheap, so I'll try that out, thanks for the suggestion! AmericanYouth - I had an EJ22T longblock and TD04, but decided to go with a ring for my girl...I shoulda turbo'd my car - it woulda been more fun //marcus

11-03-2004, 09:57 PM	#11
jamesfacts NASIOC Supporter Member#: 51282 Join Date: Dec 2003 Chapter/Region: Tri-State Location: Brooklyn NYC / Danbury CT Vehicle: 98 RS black & blue from parking	Yeah I know. It was a joke... G/L w/ the na - let me know if you need a hand.

11-17-2004, 10:59 AM	#12
marcus12 Scooby Specialist Member#: 45613 Join Date: Oct 2003 Chapter/Region: NESIC Location: Columbia, CT Vehicle: 2005 Legacy GT Ltd. Satin White Pearl	Hmmm...any more thoughts? //marcus

11-17-2004, 02:07 PM	#13
Pocon Scooby Newbie Member#: 17479 Join Date: Apr 2002 Location: Toronto, On - Canada Vehicle: 1999 Impreza WRX Silverthorn Metallic	Have you tried cleaning your injectors?