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Author Topic: 3.4 swap runs but sputters smooths out then dies smells very rich  (Read 31090 times)

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Fierofool

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #150 on: March 31, 2020, 09:19:54 am »
40 psi at idle is pretty good.  The EGR solenoid doesn't affect anything as far as how it runs, especially at idle.  Many people remove it or the valve and remove the check engine light.

When you installed the new IAC, did you adjust the pintle down to just under 1 1/8 inch?  If it had a slotted pintle shaft, did you rock it side to side while pressing down on it to retract it?  If it had a smooth round shaft, did you retract the spring from the tip and screw it down?  The one with the slotted shaft can be damaged if you try to screw it down. 

O-2 sensor usually will throw a 33 code if it's bad.  I'm having that issue right now.  33 code and 45 code.  Rich exhaust and MAP sensor.  0-2 sensors can be bad enough to give problems but still not throw a code.
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Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #151 on: March 31, 2020, 09:57:54 am »
I haven't received the new IAC valve yet waiting for it to come in the mail.the only sensor I have replaced so far is the m.a.p. I have a new air charge sensor, throttle position sensor, temperature sending unit, and i.a.c on the way .
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Mike

Sandman87

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Re: 3.4 swap will not idle in drive little power when driving
« Reply #152 on: March 31, 2020, 10:03:10 am »
Is it possible the transmission could be stuck in 2nd or 3rd gear?
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Mike

Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #153 on: March 31, 2020, 10:48:00 am »
Started right up this morning!
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Mike

GTRS Fiero

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #154 on: March 31, 2020, 05:32:04 pm »
Quote from: Sandman87 on March 31, 2020, 08:37:52 am
Would you recommend me replacing the O2 sensor?

No.  What does the pressure read, with the ignition off, when you first prime the pump?
« Last Edit: March 31, 2020, 05:34:45 pm by GTRS Fiero »
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GTRS Fiero

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Re: 3.4 swap will not idle in drive little power when driving
« Reply #155 on: March 31, 2020, 05:35:45 pm »
Quote from: Sandman87 on March 31, 2020, 10:03:10 am
Is it possible the transmission could be stuck in 2nd or 3rd gear?

When you went for a drive, did it shift?
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GTRS Fiero

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #156 on: March 31, 2020, 05:36:27 pm »
Quote from: Sandman87 on March 31, 2020, 10:48:00 am
Started right up this morning!

Almost sounds like the CTS or associated wiring.
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Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #157 on: March 31, 2020, 06:33:48 pm »
I'll have to hook a fuel pressure gauge up to it when I go back out there tomorrow. When I drove it no it did not get out of first I didn't go any faster than 20 mph and had little power .
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Mike

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #158 on: March 31, 2020, 06:34:51 pm »
What was the RPM?
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Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #159 on: March 31, 2020, 06:38:42 pm »
3 k max I didn't want to push it
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Mike

GTRS Fiero

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #160 on: March 31, 2020, 06:40:04 pm »
It was in first.
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Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #161 on: March 31, 2020, 06:40:49 pm »
Okay that's good
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Mike

Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #162 on: March 31, 2020, 06:42:25 pm »
I'll have to double-check it to be sure but last time I checked the fuel pressure before I started the car and I turn the key for the pressure was at 45 to 48 maybe and when running it stays right about 40- 42 PSI but don't set that in stone just yet I'll have to retest it
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Mike

GTRS Fiero

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #163 on: March 31, 2020, 07:00:10 pm »
Those numbers are good.  Looking more and more like CTS.
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Sandman87

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Re: 3.4 swap runs but sputters smooths out then dies smells very rich
« Reply #164 on: March 31, 2020, 11:06:09 pm »
This is the one right above the water pump correct.
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Mike
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