Help please! I have a 1994 winnebago warrior with a Chevy 454 tbi. It doesn't want to idle and dies when you put it in gear.. any suggestions? . .

95

Asked by Jun 18, 2015 at 10:02 PM

Question type: Maintenance & Repair

It seems to have a long crank time before starting sometimes it starts and dies.  
Sometimes it starts and surges before dieing and other times it starts and seams to idle
fine.  But it always stalls when put into gear  unless you have your foot on the accelerator.   
If you try to Rev it when it doesn't want to idle it will stumble  then pick up but will only
come up to about 3/4 of its power band and act like it has a Rev limiter. It has done this
since I acquired  it.  I  kinda thought fuel pressure   but after sitting last winter the fuel
pump locked up. So it is now new along with the fuel filter. .

19 Answers

70,275

Clean the throttle body and IAC,sound like it may not be getting enuff air to the fuel system.

95

Yeah I tried that earlier today. New diaphragm and spring in the regulator too.. thanks for the reply

1 of 1 people found this helpful.
70,275

Have you checked the timming?

95

When it does decide to run good it runs real good. You can jump on it and it will come back to idle. Until it is put into gear, then it will die. . But when it is running good. It is as if someone out of the blue flips a switch and it will go back to acting like a pig.. it throws oddball codes 22, 42, 36 are the codes I have seen so far. It is getting pretty frustrating. .

95

Timing is spot on. .

95

Cat isn't clogged

70,275

Have you checked the crank sensor?

95

No, I have not done that. . Do you think that the sensor braking down may cause this problem? Every cps problem I have encountered it has either been it works or it doesn't.

95

I just finished changing the ignition control module with No change in operation.

70,275

Crank sensor are funny win they are bad,will work sometimes,then not other,s,sounds familuar?

70,275

All so gives you the symtoms you have discribed.

95

I am leaning more and more towards thinking it is the ecm..

1 of 1 people found this helpful.
70,275

Could be,but i think if you have not replaced the crank sensor,that would be a good thing to do,and if that is not the issue,the i agree with you,the ECM.

95

Alright man I will try that tomorrow and repost.. Thanks for talking to me.

1 of 1 people found this helpful.
70,275

You are welcome,let me know how it goe,s.

28,065

HI...READ UP ON THIS....http://www.chevytalk.org/fusionbb/showtopic.php?tid/202722/

1 of 1 people found this helpful.
95

Lol, you could have just told me to throw a carb on it and dummy load everything. . I had thought about it and as a last resort it's definitely an option. Thanks for the reading, there is some helpful info

95

...so there is no ckp sensor it is obd1 gm.. closest to a ckp it has is a pick up coil and that is more of a cmp if anything. . Should have caught this last night but I was tired. ..

95

Just put a higher pressure fuel pump in and she runs better than ever. .thanks Delphi for the junk pump. .

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